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Mathematics Questions and Answers March 26, 2021

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my parabola has the given points of (-1,7)(1,1)(3,-1)(5,1)(7,7) the vertex is (3,-1) how do I write the problem equation for this graph?

(1) Integer Optimization: Guahan Carpet Co. has received an order for carpets for a new office building at Tamuning. The order is for 4,000 yards of carpet 4-feet wide, 20,000 yards of carpet 9-feet wide, and 9,000 yards of carpet 12- feet wide. Guahan can order two kinds of carpet rolls, which the company can cut to fill this order. One type of
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Assume that a set of test scores is normally distributed with a mean of 80 and a standard deviation of 40. Find probabilities that a) The score is less than 80. b) The score is greater than 100. c) The score is between 40 and 100. (Round to one decimal place as needed.) You can use Online Applet for Normal distribution or the 68-95-99.7 rule.

The survey conducted last year by my students in Business Studies found out that the average net income for Business graduates is $74,914. One of my current students queried the results and decided to repeat the research by taking a random sample of 112 Business Graduates to determine whether the net income figure is different. Establish the

What is the random probability that a randomly selected gre test taker has a score on the verbal portion above 169 \f
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Which hypothesis suggests a nonexperimental design of a study? Select all that apply. One, some, or all responses may be correct. X will be negatively related to Y. The strength of evidence is related to the number of subjects in a study. There will be a positive relationship between X and Y. A lack of variables will negatively impact the study. X

A hemoglobin molecule can carry one oxygen or one carbon monoxide molecule. Suppose that the two types of gases arrive at rates1and2and attach for an exponential amount of time with rates3and4, respectively. Formulate a Markov chain model with state space{+, 0, -}where+denotes an attached oxygen molecule,-an attached carbon monoxide molecule, and

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You are the technical manager for a large company. You have two team membersworking for you, Jennifer and Salman. You randomly assign them to technical problemsthat are logged using the company's internal troubleshooting website.You do not know who you assign to which problem, as the IT system automaticallycompletes this process. Historical data

What are the major differences between Microsoft Excel and Google Sheets
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Hello need help please college Algebra Solve the equation. 2 a 4+ 1 = 7 a 2 thanks

Funciones de ingreso El ingreso diario (en cientos de dlares) de una compaa derivado de la venta de rasuradoras elctricas Royal est relacionado con el precio unitario (en dlares) por la ecuacin () = 10 9 2 1200 9 a. Calcule el mximo ingreso diario de la venta de las rasuradoras. b. Para en un ingreso de $ 388 888.89 obtenido por la compaa, calcule

Three broadway dancers are positioned on stage. If Tatiana is 12 meters straight behind Zachary and 5 meters directly left of Joel, how far is Zachary from Joel? use sqrt (a^2-b2)=c

Solve for three parts c= A= B= Solve A ABC subject to the given conditions, if possible. Round the lengths of the sides and measures of the angles (in degrees) to 1 decimal place if ne Round intermediate steps to at least four decimal places. C b = 500 1420 a = 400 C Part: 0 / 3 Part 1 of 3 C~ X
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How many equilibrium points are there?How many of these are stable?How many are unstable? The image is attached below. Group of answer choices A. There is one equilibrium point. It is stable B. There is one equilibrium point. It is unstable. C. There are three equilibrium points. All are stable. D. There are three equilibrium points. One is
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There hasn't been a structured approach for determining the managers' bonuses past. Therefore, the CFO is debating between two bonus structures and has aske to discuss and calculate the bonuses under each option and provide a recommen on which bonus structure to use. Specifically: 1. The CFO would like you to assess what type of responsibility
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Over what interval does the graph of the rational function have positive, decreasing slope
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unsure how to complete Question 37 In a random sample of twelve people, the mean driving distance to work was 25.7 miles and the standard deviation was 7.1 miles. Assume the population is normally distributed and use the t-distribution to find the margin of error and construct a 99% confidence interval for the population mean u. Interpret the
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Which of the following demonstrates the property of combinatorial entailment? Click all that apply. Group of answer choices Jane is doing a "brain training" program, and on one trial she is taught to select "LEF" as opposite to "SAF". She then is able to correctly answer that "SAF is opposite "LEF" Albert is taught to place three different colored

using the following data regarding maternal smoking and infant birth weight.(X,X 2 , Y, Y 2 ,and XY have already been calculated for you and are shown below.) Cigarettes Per Day (X)X 2 Infant Birth Weight (Y)Y 2 XY 247.556.2515.0 6367.251.8443.2 101006.947.6169.0 121446.238.4474.4 X =30X 2 =284Y =27.8Y 2 =194.14XY = 201.6 What is COV xy (the

statistics problem set 1. Write the formula for the test statistic to use when testing the hypothesis: Ho : p = po vs H1 : p x po at the level of significance of o with n observations and not knowing the population variance, Question 1 (5 pts) ???? Write your answer using notation like this: (a) sqrt (n) for vn (b) (a+b+c) /2 for (atbig) (c) z_
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Match each cost to the appropriate cost behavior pattern shown in graphs (a) through (l). Any graph can fit two or more patterns. Twelve graphs labeled from (a) to (l). Each containing a distinct type of line or curve."Twelve graphs labeled from (a) to (l). Each containing a distinct type of line or curve.(a) shows a smooth, concave curve.(b)

An object moves from + 5 m position to - 10 m position in an interval of time 3 seconds . The average velocity of the object is O 8.5 m/s O 1.7 m/s O -5m/s O 5m/s
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'7 The points P(5, i3) and (20:3) lie on a circle C with centre (a, 8) and radius r. Find the equation of the circle C
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You and your friend decide to get your cars inspected. You are informed that 65 % of cars pass inspection. If the event of yourcar's passing is independent of your friend's car, a) What is the probability that your car passesinspection? b) What is the probability that your cardoesn't passinspection? c) What is the probability that both of the

An instructor who taught two sections of engineering statistics last term, the first with 25 students and the second with40, decided to assign a term project. After all projects had been turned in, the instructor randomly ordered them before grading. Consider the first 15 graded projects. What are the mean value and standard deviation of the

The small sample hypothesis test is based on the_______distribution, while the large sample hypothesis test is based on the _____________ distribution.

You get 10000 kr. annually for 5 years. You will receive your first payment after 1 year. You need money now so you go to the bank with the ticket and want the bank to buy the ticket from you. What is the bank willing to pay for the ticket if the interest rate is 12% with an update once a year

Determine if the linear state equation rem = PS\" i] m) is uniformly exponentially stable for each of the following: (a) a(t)=0; b=1 (b) a(t)=1;b=1 (e) a(t)=t; b=0
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Gentle Ben is a Morgan horse at a Colorado dude ranch. Over the past 8 weeks, a veterinarian took the following glucose readings from this horse (in mg/100 ml). 918680107971118487 The sample mean is x 92.9 . Let x be a random variable representing glucose readings taken from Gentle Ben. We may assume that x has a normal distribution, and we know

Find the measures of all the angles in the figure shown below. (Assume , is parallel to (z) Given mz7 - 110 mz1 mz2 m23 m24 m25 m26 m28 A 3 2 8 Submit Answer 6. [-/1 Points] DETAILS SMITHNM13 7.2.032. Classify the pair of angles shown in the figure, where {, and &2 are parallel. 47 and 213 4 A 3 B 8 13 16 IS 121 11 20 18 19 O alternate exterior
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Answer and Explain Question 19 The transition table for a Turing Machine is given below: (qrej.". R) (gaggi". R) (q.. b. R (qre ). . F (93. ", L) (qre .". R) (93. a, L) (qa, b. L) Select the string that is accepted by the Turing Machine aabb bab aba aab
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4. Find the standard deviation for the following frequency distribution of the hours spent at a youth-recreation center on a Saturday night by a sample of 20 teenagers. Do so by carrying out steps a-d listed below. X f 5 3 4 5 3 7 2 3 1 2 N = 20 a)make an fX column. b)make an fX column. c)find the mean. d) find the standard deviation

STOLIdI Experience and the Report on Post-Graduate Engineering Experience Your application for registration must be accompanied by the Summary of Post-Graduate Professional Experience and Report on Post Graduate Experience in which your engineering experience from the date of obtaining the first engineering degree to the date of application is
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Questions (16-18) 8 Suppose that the random variable X has a uniform distribution on the interval (1,5) then: (16) P(X A B C D 0.5 0.33 0.215 0.0465 (17) The mean of X is: A B C D 0.35 0.896 3.5 3 (18) The variance of X is: A B C D 0.75 0.896 1.33 0.247 AutoSave . Off 1 0 7 ) - 1 acgazall.docx - Compatibility Mode - Word O Search shahad alotaibi
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3 4 5 6 7 8 9 10 Question For the triangle ABC, choose the steps to construct a line GF parallel to AB. A G B A Construct an angle with vertex G that is congruent to ZA . Label the point where the side of the angle you constructed intersects BC as F. GF | | AB. B Construct an angle with vertex G that is congruent to ZC. Label the point where the
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Jeremy is using an ANOVA to examine the alternative hypothesis that brand loyalty is higher among frequent fliers of Jet Blue than the reported brand loyalty of frequent fliers on United, US Airways, and Delta. If the p value is less than .05 and the F ratio is greater than 1, which of the following interpretations is correct?

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To finance his education, Chris took out student loans totalling $30 comma 700. He consolidated these loans into a single loan with monthly payments for 10 years and an interest rate of 7.5%. After making payments for 6 years, his grandfather has graciously offered to pay off the remaining balance. Calculate the amount needed to pay off his loan.

3- According to nerdwallet.com, the average household mortgage debt was $ 156,333 in August 2015. Suppose that the current distribution of mortgage debts of all U.S.households has a mean of $ 156,333 and a standard deviation of $ 36,000.Find the probability that the current average mortgage debt of a random sample of 144 U.S.households is a.less

1) Use elimination to solve for the values of x and y in the following system of equations Show work. x + 5y = 12 2x - 5y
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In a bumper test, three test vehicles of each of three types of autos were crashed into a barrier at 5 mph, and the resulting damage was estimated. Crashes were from three angles: head-on, slanted, and rear-end. The results are shown below. Research questions: Is the mean repair cost affected by crash type a nd/or vehicle type? Are the observed

The total body surface area, or BSA, of a human is difficult to calculate. There are various models that estimate BSA based on a person's weight and height. One simpler model is BSA wh 3600 where w = weight in ky and h = height in cm. a. Using this model, estimate the height of a person who weighs 75 kg and whose BSA is 1.7. Round your answer to
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1. Keynes versus Bull'ett This problem compares the investment records of two famous gures in nance: John May- nard Keynes and Warren Buffett. The keynes . txt data records the annual returns for the portfolio Keynes managed for King's College of Cambridge University in the 1930s. The louf f att . txt. data records the performance of Berkshire
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1) The frequency table below shows the number of days off in a given year for 30 police detectives. Days off Frequency 0-2 10 3-5 1 6-8 7 9-11 7 12-14 1 15-17 4 Construct a histogram. Use the class midpoints for the horizontal scale. Does the result appear to be a normal distribution? Why or why not?

Need a bit help with two questions Early in quarantine, Vanessa adopted a fat cat named Nutmeg. She is now on a strict diet. Each morning, she receives 2 oz of dry cat Food on average, with a standard deviation of .5 oz. Each evening, no earlier than 6pm, she receives exactly 3 oz of p_qt_ I ;e_ style wet cat food. Assume that the amount of cat
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Public opinion pollsters report the results of such poll questions as the proportion who respond affirmatively (i.e., they say YES) and a "margin of error." By "margin of error," they mean the quantity that is added to, and subtracted from, the point estimate to get the upper and lower confidence limits. Suppose that you work for such a pollster,

C Che Q Sear C Che Q Sear y! Wha Sear C QUE & LTIL Bb Mod P DO I P C mylab.pearson.com/Student/PlayerTest.aspx? caliper_profile_url=https%3a%2f%2felearning.kctc ite Math & its Applications (4226_9871) Module 2 Lesson 4 Quiz - The Simplex Method for andard Problems Question 1 of 10 list K Determine the next pivot element for the tableau. - 3 M DO -
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A large group of runners participated in a one-mile race.The average finish time was 6.5 minutes with a standard deviation of 0.5 minute.According to the empirical rule, what was the percentage of runners that finished with a time greater than 5.5 but less than 6.0 minutes?

Situation: Many people believe that there is a "Friday effect" in the stock market. They do not necessarily spell out exactly what they mean by this, but there is a sense that the stock prices tend to be lower on Fridays than on other days. Action: Because stock prices are readily available on the web, it should be easy to test this hypothesis
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DO NOW Name Date Per 7.1 A perfect square is a number whose square root is an integer. Half of the first 300 perfect squares are listed for you. Fill in the other 15 perfect squares. because 13 1 256 - 16 because 162 256 because because because because because 361 - 19 because 192 - 361 25 - 5 because 51 25 because because 441 - 21 because 213 441
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. State tax officials claim that the average amount of money claimed by all the taxpayers within the state for charitable deductions during 1994 was $964 with a standard deviation of $102. Many samples of size 64 are taken. 1. Find the mean of these samples and the standard error of the mean.

If your p value is 0.15 and you have chosen of .10, then a statistical decision is to ______.

You work with the pricing actuary at Cash for Claims, a large Property/Casualty insurer. The CEO has some questions based on the most recent pricing analysis and the pricing actuary has asked you to assist with the response. The proposed rates were not in the range the CEO expected given the pricing analysis. The CEO has asked the pricing actuary
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Find the perimeter of the polygon with the given vertices. 3. D( -- 3, 2). E(4, 2), F(4, -3) 4. G(-3, 2), H(2, 5. R(- 1, 1), L(4, 1), M(2, -2), N(-3, -2) 6. O(-4, -1), R(1, 4), S(4, 1), T(-1, -4)
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4. Let {Xm in. E N} be a DT MC with a nite number of states arranged as follows: 0,1,2,...,M1,M,M+1,...,N, \\_',\\_',_4 transient states absorbing states so that the TPM for this DT MC can be expressed as 0 1 Ml M M+1 N 0 T R P: M? Q ME+1 0 I N Assume that the initial conditions of the DTMC are described by the probability row vector on =
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In general, why is it true that A divided B = A/B whenever A and B are counting numbers?

Pre-Calculus: The mean of a set of normally distributed data is 402, and the standard deviation is 36 Question a) Find the interal about the mean that includes 25% of the data? Question b) What percent of the data is between 387 and 417?

C-15: How would you describe Apple's pricing strategy, are they skimming pricing, penetration pricing, or target costing? Why? Justify your answer. 300 16. When going from an(or significance level) of 5% to a new one of 1%: a A) the probability of committing a Type I error will be greater B) the power of the test will be lower C)will be decreasedb

Definefemale_heights, a set of mother and daughter heights sampled fromGaltonFamilies, as follows: set.seed( 1989 ) # if you are using R 3.5 or earlier set.seed( 1989 , sample.kind= "Rounding" ) # if you are using R 3.6 or later library (HistData) data ( "GaltonFamilies" ) female_heights % filter(gender == "female" ) %>% group_by(family) %>%

Among 6570 cases of heart pacemakermalfunctions, 356 were found to be caused byfirmware, which is software programmed into the device. If the firmware is tested in 3 different pacemakers randomly selected from this batch of 6570 and the entire batch is accepted if there are nofailures, what is the probability that the firmware in the entire batch

C. Day ile ambul D. Wheel Elevate the function lift 3. Use synthetic division and the remainder theorem to determine if the given number, c, is a zero of , Rest . Dia f(x) = 3x4 -2x2 + 5x - 10; c= -5. See Section 3.3 Example 7 Section 3.3 Factor Theorem
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I'm stuck on this question could you please help me solve it? AT Wi IW ATy (TR Ly s s s e Singer Company has a line of credit with United Bank. Singer can borrow up to $402,500 at any time over the course of the Year 1 calendar year. The following table shows the prime rate expressed as an annual percentage along with the amounts borrowed and
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Give two properties of a circuit that make it an Euler circuit.

If a motorcycle weighs 45% less than a car, then the motorcycle's weight is what % of the car's weight

Please, show steps and make sure the answer is right, thanks!! Please, don't solve the question again, if you have before!! Analyze the propped cantilever steel beam shown below and solve for the support reactions. 2 k/ ft B 24 ft
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Identify the open intervals on which the graph of the function is concave upward or concave downward Assume that the graph extends past what is shown. 10 8 -6 24 20 2 8
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Fractions and mixed numbers are often used in everyday life. Discuss a real-life example in which you would need to add, subtract, multiply, or divide fractions or mixed numbers, and show the math

The velocity of a car is given (in miles per hour)... The velocity of a car (in miles per hour) is given by v (t) = 40t - 6t where t is in hours. (a) Write a definite integral for the distance the car travels during the first three hours. Equation Editor Common Matrix ? sin(a) cos (a) tan(a) sec(a) csc(a) cot(a) Va va faz faz sin (a) cos (a) tan '
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Hi Can you help me with this questions? Thanks a lot! 5. (a) [7] Find the rank of 1 2 3 A = - -2 and its inverse, if it exists. as (b) [7] Let T : P2(R) - R3 is defined by (a + bx + cx2) = (a + b, b + c, c + a). Is T invertible? If yes, find T-1. 6. (a) [7] Let V = {(a1, a2, a3, a4) : a1 - 202 + 303 - 404 = 0}. Show that (2, 0, 2, 2) E V. and
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A/An ____ is a named, preprogrammed formula, such as to compute the average of a group of cells or calculate a mortgage payment amount. Question 10Select one: a. argument b. label c. cell d. function Question 11 Not yet answered Points out of 1.00 Flag question Question text A/An ____ is a named, preprogrammed formula, such as to compute the

A retailer implemented a new advertising strategy that they believe will increase customer spending. Previously,mean spending per customerwas $70.00.After the new advertising strategy was implemented,a sample of 300 customers revealed mean spending of $75.86 with a sample standard deviation of $50.90. Which of the following null and alternative

the length of a rectangle is (2 + 5), and its area is (43 + 102 + 6 + 15). Use the long division to find the width of this rectangle (express your answer algebraically in the term of )

The power of a statistical test is the probability of __________. Group of answer choices A. correctly rejecting a false null hypothesis B. proving a true null hypothesis C. correctly rejecting a false alternate hypothesis D. proving a false null hypothesis

Ravi borrows $150,000 from a bank in the form of a 15-year mortgage to purchase a house. If he pays $15,000 per year, how much total interest will he pay over the life of the loan? (Note: The $15,000 payments include principal and interest.)

ZZ. Find the missing angle of missing side of each triangle. Note: diagrams are not to scale. a b) C 320 520 15 18 85 40 120 105 9.5 a) b) C
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You decide to reduce the amount you spend eating out by $235 a month and invest the total saved at the end of each year in your retirement account. How much will the account be worth at 10% in 25 years? (UseTable 13.1.) (Do not round intermediate calculations. Round youranswer to the nearest cent.) Future value after 25 years-

For the question marks, they are drop down menus with the following options. (Both have the same options) Is approximately normal is exactly normal Is binomial is uniform is hypergeometric is poisson Problem 5. (1 point) You are to roll a fair die n = 1 12 times, each time observing if the topside of the die shows a 6 (success) or not (failure).
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(1 point) Find the absolute maximum and absolute minimum values of the function f(x) - 14 - 812 - 1 on each of the indicated intervals. Enter -1000 for any absolute extrema that does not exist. (A) Interval = [-3, -1] Absolute maximum = Absolute minimum= (B) Interval = -4, 1] Absolute maximum = Absolute minimum = (C) Interval = -3, 4 Absolute

Probabilities A box of 25 Lego blocks contains 2 yellow square blocks, 3 yellow rectangular blocks, 4 blue square blocks, 8 blue rectangular blocks, 4 green square blocks, and 4 green rectangular blocks. Use this information for problems 4 through 7. 4.What is the probability of choosing a block that is blue? 7.If you choose two blocks (without

You are the cook in a diner. the breakfase special consists of 2 eggs, 3 pieces of bacon, and 2 piecefs of toast. you have 8 eggs, 6 pieces of bacon, and 10 pieces of bread. what is the maxiumum number of breakfast specials you can make

Please Answer (Use decimal notation. Give your answer to four Given the twosample I test assumptions, consider the table decimal places ) of summary statistics. Sample Sample Sample Group size mean variance _ momma One 14 49.6 134.56 Two 16 50.2 243.36 Determine the value of the test statistic. (Use decimal notation. Give your answer to four
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Need help with this. Thank you In 2017, the average passenger vehicle in the United States was driven 11.3 thousand miles. A random sample of 500 passenger vehicles revealed a mean of 11.5 thousand miles driven and a standard deviation s = 6.0 thousand miles for 2017. Based on this sample, a researcher claim that the mean distance driven for all
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5 Consider the following variant of the Battle of the Sexes: player 1 is unsure whether player 2 prefers to go out with her or prefers to avoid her, while player 2 knows player 1's preferences. Specifically, suppose player 1 thinks that with probability = the game is: PLAYER 2 B S PLAYER 1 B 2, 1 0.0 S 0, 0 1. 2 and with probability , it is;
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I need help in this question 13 Assume that a procedure yields a binomial distribution with n trials and the probability of success for one trial is p. Use the given values of n and p to find the mean u and standard deviation o. Also, use the range rule of thumb to find the minimum usual value u - 20 and the maximum usual value u + 20. n = 60, p =
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What is the equation Find an equation of the line with the given properties. Write the equation in slope-in m = - 6 containing (x1.y1 ) = (-2.5) The equation is (Simplify your answer.) Use the graphing tool to graph the line. Click to enlarge graph
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solve for x: 40 = 0.0005x*+ 0.017x 2 - 0.2077x + 37.807\f
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TASK 1 (15 marks): Write a program to accomplish the following tasks: Consider there are several files. The file name is defined as "SUBJECT_CODE txt". SUBJECT_CODE is a unique code used to represent a subject, for example, ICT701, ICT71 1, etc. The contents in a file are typically as following: Assignment 1 (20%) Assignment 2(20%) Final exam
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lucy wants to know how her fourth grade daughter, monica scored on a test of reading comprehension compared to the population of other fourth graders in the school district luckily, lucy has taken this course and know the z-score will help her understand monica's reading score in relation to the population. monica's reading comprehension score

Suppose you are interested in how children with severe autism experienced the receipt of special education assistance in public schools. This population is characterized by underdevelopment of social cognition, social skills, and language skills. How many children should be included in the study? Why? What are the factors considered in making this

Given the following shipping container constraints, what is the maximum number of boxes that will fit in the container? Shipping Container Constraints: Length = 480 inches, Width = 96 inches, Height = 102 inches. Size of the boxes you are shipping: Length = 40 inches, Width = 15 inches, Height = 60 inches. Group of answer choices 130 64 72 100 96

7. A coin is tossed three times. Find the variance and SD of the probability distribution of the number of heads obtained. Show your work. 10pts 8. 5000 lottery tickets are sold with the following 3 cash prizes: $15, $60, $100. Let X denote the amount a player wins. 10pts. ea a. Determine the probability distribution of X. b. What is the
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Need help please A coffee company has found that the marginal cost, in dollars per pound, of the coffee it roasts is represented by the function below, where x is the number of pounds of coffee roasted. Find the total cost of roasting 90 lb of coffee, disregarding any fixed costs. C'(x) = - 0.018x + 3.50, for x s 100 The total cost is $ C.. (Round
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Which of the following is a highly mobile electron carrier during electron transport? Cytochrome C Complex IV Complex I Complex
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The data show the time intervals after an eruption (to the next eruption) of a certain geyser. Find the regression equation, letting the first variable be the independent (x) variable. Find the best predicted time of the interval after an eruption given that the current eruption has a height of 77 feet. Use a significance level of 0.05. Height

This is the fourth part of a four-part problem. If the given solutions 2est - 8e- Best + 2e -$7 y1 (t ) = 3e3t - 20e t ) 3/2(t) = 12e3t + 5et form a fundamental set (i.e., linearly independent set) of solutions for the initial value problem -52 15 y, y(0) = -102 impose the given initial condition and find the unique solution to the initial value
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Answer the following three questions (9, 10 & 11) based on the information given in the question that immediately follows 9. Consider the following experiment of randomly drawing eleven books from a pile of 12 physics, 3 chemistry and 14 mathematics books. Suppose this experiment is repeated n times. If x i ,y i and z i are respectively, the total

For a binomial experiment with r successes out of n trials, what value do we use as a point estimate for the probability of success p on a single trial? (Enter a mathematical expression.) = p hat =

Diastolic blood pressures are assumed to follow a normal distribution with a mean of 85 and a standard deviation of 12. What proportion of people has diastolic blood pressures less than 80? A)0.661 B)0.338 C)0.50 D)0.75

Suppose 39 women used a skin cream for 22 weeks. At the end of the?period, a dermatologist judged whether each woman exhibited skin improvement. The results are shown to the right?(where I=improved skin and N=no ?improvement). Complete parts a and b . Suppose 39 women used a skin cream for 22 weeks. At the end of the period, a dermatologist judged
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