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Mathematics Questions and Answers October 07, 2022

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Hide Assignment Information Turnitin Turnitin enabledThis assignment will be submitted to Turnitin. Instructions Open Investigation/problem 1. You will adapt or design an open mathematics investigation/problem and an associated extension activity. This open-ended investigation/problem and associated extension activity can become the basis of your

Identify your independent and dependent variables using appropriate symbols to state them. Let the independent variable represents the time in years and the dependent variable represents the cost in dollars

If = .05 and = .25, calculate the following: The statistical decision is to fail reject the null, and H 0 (the null) is really true (i.e., a correct decision) .05 .75 .20 .01 .95

The amount people pay for cable service varies quite a bit, but the mean monthly fee is $142 and the standard deviation is $29. The distribution is not Normal. Many people pay about $76 for basic cable and about $160 for premium service, but some pay much more. A sample survey is designed to ask a simple random sample of 1,500 cable service

Question 2 Following data gives the amount that a sample of 10 customers spent for lunch ($) at a fast food restaurant: $8.50, $7, $5.80,$9,$5.60,$7.80,$6.50,$5.40,$7.50,$5.50 Construct a 90% confidence interval estimate for the population mean amount spent on lunch at the fast food restaurant and interpret it.

What would be an example of a study that utilizes an experimental field design? a. what would be the intended purpose of the study b. what methods would be used to conduct the study c. limitations/advantages of the study d. high or low experimental control and external validity

Find the simple interest for the following. Round it to the nearest cent. A loan of $,1870 at 11% made on October 5 is due on January 16. Question 31 options: $58.85 $58.05 $46.85 $46.21

If you reject H0 in an ANOVA, then you conclude that the: a. group means differ by more than sampling error alone. b. variances of each group are not equal. c. group means differ because of sampling error. d. variances of each group are equal.

To determine if their 2.50 centimeter industrial belts are properly adjusted, Spencer Industries has decided to use an x Chart which uses the range to estimate the variability in the sample. What is the Center Line of the control chart? Round your answer to three decimal places. Period obs1 obs2 obs3 obs4 Sample Mean Sample Range 1 2.47 2.52 2.50

A pirate map indicates that a treasure is buried 50 paces due east and 120 paces due north of a big rock. Would you be likely to readily find the treasure? Assume that your pace length is different from the pace length of the pirate

You measure 43 textbooks' weights, and find they have a mean weight of 61 ounces. Assume the population standard deviation is 8.9 ounces. Based on this, construct a 90% confidence interval for the true population mean textbook weight . Give your answers as decimals, to two places

When you truncate a positive real number to an integer, you are computing the number's Group of answer choices ceiling fractional portion floor truncation factor

Cheating: For a statistics project a community college student at Diablo Valley College (DVC) decides to investigate cheating in two popular majors at DVC: business and nursing. She selects a random sample of nursing and business courses and convinces the professors to distribute a short anonymous survey in their classes. The question about
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A corporation must appoint apresident, chief executive officer(CEO), chief operating officer(COO), and chief financial officer(CFO). It must also appoint a planning committee with five five different members. There are 12 12 qualifiedcandidates, and officers can also serve on the committee. Complete parts(a) through(c) below. a. How many different

For the multiple choice questions, please put your answers in the table below a b d e f a. An n x n matrix with fewer than n distinct eigenvalues is not diagnosable a. True b. False b. An n x n matrix with / distinct eigenvalues, then corresponding eigenvectors { X7, X. .., Xn) are linearly independent. a. True b. False c. If A is diagonalizable
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Using the generalized binomial theorem, Show that - 1/2 (1/2 choose n 1)(-4)^(n 1)=1/(n 1) (2n choose n) Note. The above identity completes our proof (done in class) that the number of binary trees with n vertices is equal to the nth Catalan number

In robust optimization, a constraint that cannot be violated is known as a Multiple Choice soft constraint. dependent constraint. hard constraint. additional constraint. independent constraint

if a random variable can take on a countable number of values, one would use adiscrete distribution True or false

Find the reference angle for the standard angle of -10/4

Here is a picture of the question I Question 5 v
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A random variable x has an Exponential distribution IT: f(x) => e" wherex 20 zero otherwise ; Al the distributional parameter ) 60. An Exponentially distributed random variable X has E X =1/1 and var X] = 1/12 Suppose there are three specialized components: widgets (W), sprockets (S) and pipes (P); whose functionality is each independently
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3: In 1626 Peter Minuit bought Manhattan Island for $24. Plenty has been written and discussed on how this was theft, but was it really? Answer this question in Excel and use equations/models to justify your answer. Evaluate the question assuming the following rates of return on a given investment during this time: 2%, 6% and 10%. HINT* create one

You are interested in estimating the average dollar amount that full time undergraduate students at Alabama spent for books and supplies for the Fall semester. A random sample of 30 students reported a sample mean of $578 and a sample standard deviation of $64. A 95% confidence for the true mean amount spent by all students ( Assume that

When a logarithm has an argument with an exponent, the logarithm can be simplified by: Group of answer choices Multiplying the log by the base Sp;itting the log into two logs using addition Multiplying the base by the logarithm Multiplying the log by the exponent

A.Although his job is to accurately estimate home value, the tax assessor would like to know if the influence of one additional bedroom (X 4 ) on value is the same as one additional full bathroom (X 5 ) on value. Using the various models, as potential reduced or full models defined in the table below and provided in the output, state the Null and

What fraction is being modeled in the figure below? Two rectangles are each divided into three equal parts. The first rectangle has all three of its parts shaded. The second rectangle has two of its three parts shaded

Initial estimates of the probabilities of events are known as ___?

Mara Estrada es una paciente de 25 aos que es deportista y asiste a la oficina por una fractura del borde incisal del diente nmero 9. El dentista toma una radiografa y le indica que todo est bien para restaurar. Contesta la siguiente pregunta: Detalla el procedimiento de restauracin para esta cavidad

Please help 1 of 14 (2 complete) given below to complete parts (a) through (c). if they felt vulnerable to identity theft. In the poll, n = 1016 and x = 561 who s es. lation proportion p. as needed.) as needed.) er boxes. O
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Random Variable Question 2 of 3 What is the probability that exactly 2 of the 20 males are color-blind? (Note: Some answers are rounded.) .08 .2711 .0'l43 .5422 .0159 DEBBIE Question 3 of 3 What is the mean and standard deviation of the random variable Y (the number offemales out of40 who are color blind)? Answers may be rounded. |:| mean: 40,
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Final Paper: Determine the vision of the company as a start-up. Then, evaluate all of the different challenges you encountered. Lastly, determine the different solutions for those challenges. Each component will be contributed during each week of class. The case study analysis paper must contain the following sections
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In a paired difference experiment, you get the following results: \f
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cumplir pasar ser Image of Nora Nora L. Naples, Florida 4 stars icon Reviewed on October 30th, 2018 via moblie iconvia mobile Apenas mi segunda visita al MAMBA y cada vez est mejor! Hace un mes el museo (1) 60 aos y creo que est en su mejor momento. Hace tiempo este museo (2) rescatado del olvido por el gobierno de la ciudad. Pero antes de ser

Calculate the % change between pre and post dehydration of each fruit

2. La empresa Argentina BELGRANO SAS cotiza el embarque de un lote de 50.000 camisas con destino a Espaa. El peso total del envo son 7.500 kg. Los datos son: Precio por Kg en el origen: 7,50 Fundas en el depsito de la empresa vendedora: 0,10/ud Flete desde el depsito del vendedor hasta puerto de Buenos Aires: 300 Gastos de carga del buque en

Help with Question please! 3. (14 points) Let X1, X2, . . . X\" be random sample from a distribution with probability density function f(:1:|a) = 40:03875'34, :1: > 0, o: > 0 (a) (10 points) Obtain the maximum likelihood estimator of a, it. (a) (b) (2 points) Calculate an estimate of (I using this maximum likelihood estimator when .761 = 043, 1'2
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A class of 10 students hang up their coats when they arrive at school. Just before recess, the teacher hands one coat selected at random to each child. What is the expected number of children who get his or her own coat

Setenta y ocho millones de nios nacieron entre 1946 y 1964 (ms tarde conocida como la generacin del baby boom) junto a este fenmeno se desarrollaron enfermedades crnicas en las personas adultas viejas. Menciona el problema principal de ese tiempo en los entornos de salud que limitaba la atencin a los pacientes. Cmo resolvieron el problema

At noon today a blizzard hit and it began snowing in Springfield. It snowed continuously until 10:00 pm. The following chart shows information about the storm. Time Hours since noon (12:00 pm) Rate of Snowfall 12:00 pm to 3:00 pm 0 to 3 2 inches per hour 3:00 pm to 5:00 pm 3 to 5 4 inches per hour 5:00 pm to 10:00 pm 5 to 10 1.5 inches per hour

Which of the following interval estimates for the mean difference between population 1 and population 2 indicates that the average of population 1 is less than the average of population 2? Assume differences are found by (population 1 - population 2). a. ( -20, -3) b. (- 30, 15) c. (26, -44) d. (5, 29) 2.Which of the following distributions would

uc.instructure.com C O pis 0.25 or smaller O p is equal to 0.50 p is less than 0.50 O p is greater than 0.50 D Question 11 10 pts For 1 =6.3, the probability of x = 7, rounded to four decimal places, is: D Question 12 10 pts For 2 =3.8, the probability of P(x
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What is the most important reason for limiting main points? Multiple choice question. It is hard to adequately develop numerous main points in a short speech. It is hard to phrase the central idea if there are too many points. It is hard to maintain correct wording if there are too many main points. It is hard to have a question and answer session

Happiness tends to (x)__________, and even in the most extreme situations it will eventually (y)___________. An excellent of this is the (z)___________. (x) change, (y) drop below baseline, (z) suppression phase (x) change, (y) go above baseline, (z) expression phase (x) stay the same, (y) remain at baseline, (z) stagnant phase (x) change, (y)

Construct a chart based on the information given for each case (a). Determine which of Mill's methods apply to each case (b). Determine the conclusion that can be derived from the method (c). Christina noticed that for the entire spring semester she had a backache on Tuesdays and Thursdays, but not on the other three school days. On all 5 days she

Write down Newton's method for solving (3) for wi 1, using the initial guess w(0) = wi. The i 1 iterations will depend on the partial derivative f/y = fy(t,y). Note: Your report needs to include this, even if your MATLAB codes are working correctly. Please write it using clear and concice mathematical notation

According to a study,76% of K-12 schools or districts in a country use digital content such as ebooks, audio books, and digital textbooks. Of these 76%,8 out of 20 use digital content as part of their curriculum. Find the probability that a randomly selected school or district uses digital content and uses it as part of their curriculum. The

Given a normal distribution with =100 =10, complete parts(a) through(d). a) what is the probability that X> 95 is - ? b)What is the probability that X <85 is ? c) What is the probability that X <75 or x>110 is ? d) 80% of the values are between what two X-values ( symmetrically distributed around the mean)

sliced a sample of 16 slices with a mean of 1.5mm, but their standard deviation was .29mm. Pat's found this out & put up a sign saying, "Our steaks are more better than Gino's because our slices are more consiste nt & besides we can speak other languag es! " At a level of confide nce of 95%, is Pat's really more consiste nt
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A recent survey found that 70% of all adults over 50 wear glasses for driving.In a random sample of 10 adults over 50, what is the probability that at least six wear glasses?

The one-sample t statistic from a sample of n = 11 observations for the one-sided test of H 0: = 6; H a: > 6,has the value t = 1.93 . Based on this information: a. 0.025 < P-value < 0.05. b. None of the above. c. Both a. and b. are correct. d. we would reject the null hypothesis at = 0.01.

Question Graph the following system of linear inequalities to find the solution set. y zx-2 y2 -1-4 Select the correct answer below: -. ...... O O O 5 6 -. ......... O -7 -6 -5-\f
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20 Questions; Q 1- 10 are each worth 3 points and Q 10-15 are each worth 4 points and Q 16-20 are worth 5 points each for a total of 75 points

I need a check on my answer to the problem below. My answer was 1.73 +- .06 A random sample of 45 Americans consumed an average of 1.73 cups of coffee per day. Assume the variable is normally distributed with a standard deviation of .24 cups. Calculate an interval which will contain the true mean coffee consumption with 90% confidence. Keep

In the general population, patients who are recovering from bronchial pneumonia normally take a mean (average) of 4.75 days toleave the hospital, with apopulation standard deviationof 1.82 days.Medical personnel at a hospital are trying a newmedication that is designed to ease breathing during recovery. What is not currently known is whether the

The Conch Caf, located in Gulf Shores, Alabama, features casual lunches with a great view of the Gulf of Mexico. To accommodate the increase in business during the summer vacation season, Fuzzy Conch, the owner, hires a large number of servers as seasonal help. When he interviews a prospective server, he would like to provide data on the amount a

Hello All, I am attempting to solve this for fun. Please select all that apply What is the advantage of using Hierarchical Modeling? (:3 We do not need any prior distributions (:3 It gives us way to use less parameters (:3 Posterier distribution is simpler (:3 Makes variables more independent
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Dr. Moo conducted a research project in which she compared the impact of two types of therapy (pizza therapy and chocolate therapy) and gender on college students' happiness. Which of the effect (or interaction) is significant? How do you know? Source Sums of Squares df Mean Square F Significance Therapy 265.225 1 265.225 2.444 127 Gender 207.025
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A construction company is going to be installing a new fence. The last fence they installed was a total of 184 feet long and they charged the homeowner $51 12. With this information, what is the best estimate for what they will charge a homeowner for a fence that is 368 feet long? Keypad Shortcuts

A wholesale distributor operating in different regions of Portugal has information on annual spending of several items in their stores across different regions and channels. The data (Wholesale Customer.csv) consists of 440 large retailers' annual spending on 6 different varieties of products in 3 different regions (Lisbon, Oporto, Other) and

The table represents the amount of money in a bank account each month. Month Balance ($) 3,600.00 2 3,960.00 3 4,356.00 4 4,791.60 5 5,270.76 What type of function represents the bank account as a function of time? Justify your answer. O This is an exponential function because there is a common difference in the balance between the months. O This

A researcher investigates the relationship between pollution levels (CO, measured in ppm of CO) and distance from major intersections (DIST, straight line distance, measured in meters). Using 102 data points distributed throughout the city she finds a correlation of r= -0.32. a. Test the hypothesis that there is no correlation between pollution

Choose any two quantitative variables and use technology to create a scatterplct. Describe the scatterplct: Is there an obvious positive or negative linear trend? Are there any outliers? Use technology to find the correlation and the least squares line to predict one variable from the other. Interpret the slope of the line in context
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put in a sentence..Yesterday was account close therefore I was able to process this invoice. I am currently waiting eight properties to be opened

................. Part A 1. The following table summarized the age and blood pressure status of 474 randomly selected Canadian adults in 2017. At the 10% significance level, do the data provide sufficient evidence to conclude that age and blood pressure are associated? Age Blood Under 30 30-49 Over 50 Total Pressure High 23 51 73 147 Normal 48 91
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Which of the following is not a principle of good form design? Question 8 options: Is space provided for a signature(s) to indicate transaction approval? Does the form name appear at the top in bold type? Is the cost of producing the form too high? Is the form a standard size

Keisha is getting ready for school. She has 3 class notebooks, 4 class folders and a homework assignment for each one of her classes (7 total). When she sits down in first block to pull out the class notebook, folder and assignment what is the probability she grabs the correct materials for that class? Assuming she is randomly grabbing them from
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Date Name LESSON Practice B 13-1 Right-Angle Trigonometry Find the value of the sine, cosine, and tangent functions for 0. 3. 36 123 2. 1 . 27 120 39 15 60 36 48 Use a trigonometric function to find the value of x. 6. 7V2 4. 5. 450 60 22 30 Find the values of the six trigonometric functions for 0. 9. 40 7. 0 26 21 41 24 28 Solve. 10. A water slide
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Excel output from a test of hypothesis is shown in the following figure . Figure 1 : t - Test : Two - Sample Assuming Equal Variances Variable 1| Variable 2\\ Mean 4. 76 4. 4 Variance 10. 523 3 3 3 33 12. 25 Observations 25 25 Pooled Variance 11. 38656567 Hypothesized Mean Difference Of 48 + Stat 0. 37 718916 P ( T
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Instructions: Questions 1-3 refer to the following observed data: A gambler interested in increasing his understanding of the odds associated with a standard deck of playing cards conducts the following experiment. Using a standard deck of 52 cards, he randomly cuts the deck 20 times and records the suit of the top card. The resulting distribution

An airplane is flying straight and level (lift = weight = 213 kN). The planform area is 650 ft 2 and the wingspan is 80 ft. The flight speed is 195 m/s. The altitude is 10,000 m where the standard conditions are T = -223 K, P = 25.5 kN/m 2 , and = 0.4135 kg/m 3 . The airfoil sections are NACA 2412 with a finite angle trailing edge. The chord

explain "Establish mathematics goals to focus reasoning" of the NCTM Mathematics Teaching Practices (MTP) you think is crucial for elementary mathematics teachers. Explain why this MTP is important for effective teaching and learning of mathematics. Use practical classroom examples in your response

Concrete instructional techniques that include using real clocks to teach time-telling, real coins to teach money skills, constructing grids that students can actually walk on, or constructing a 'Gallon Man' to teach units of capacity are useful in teaching students concepts of Group of answer choices measurement geometry algebra problem solving

A 1-week-old infant is at your clinic for a newborn check. The mother asks you what the goal should be for the child's weight gain over the year. What would you tell her? Question 7 options: 1) to gain approximately 1 pound per month for the first 12 months 2) reach birthweight by 2 weeks, double birthweight by 6 months, and triple birth weight by

city receives an average of 111.6 more millimeters of rain than a second city. The second city receives an average of 244.9 millimeters annually. How much rain does the first city receive on average each year? Question content area bottom Part 1 The first city receives enter your response here millimeters of rain on average each year. (Type an

Complete the ordered pairs so that each is a solution of the linear equation. Then plot each solution and graph the equation by connecting the points by a straight line. yequalsxnegative 2 (3,Modifying with underline) (negative 8,Modifying with underline) (0,Modifying with underline) Question content area bottom Part 1 A. (3,1) (negative

Table 1.19 Frequency of Number of Movies Viewed1. Using the tables, find the percent of data that is at most two. Which table did you use and why? 2. Using the tables, find the percent of data that is at most three. Which table did you use and why? 3. Using the tables, find the percent of data that is more than two. Which table did you use and

Samuel, a quality assurance inspector at a donut factory, checks for product quality using a random sample of 7 donuts from a batch of 38, with 14 cake donuts and 24 glazed donuts. Letpbe the proportion of cake donuts in the sample. Part A: Is the 10% condition met in this case? Justify your answer. (5 points) Part B: Is the Normal condition met

The SOLAS Chapter V Regulation 19 paragraph 2.2.1 states that a vessel must be fitted with spare MAGNETIC Compass, interchangeable with the magnetic compass by means of replacement or duplicate equipment shall be REQUIRED to All Vessels of how many gross tonnage)

Rewrite the expression as a sum or difference of logarithms or multiples of logarithms. 17) 1ogg(xy) A) 10g4(X) + 1094(y) B) log4(X) - 10g4(y) C) logg(x) + log8(y) D) log8(x) - logg(y) 18) 10917 7NX y A) 10917(y) - 10917(7) - 10917 ( x ) B) 10917(7) + 7 10947 (x) - 10917 ( ) ) C) 10917( 7 VX) - 10917 ( y) D) 10917(7) , 10917( X) = 10917( )) x8 y7
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Given a normal distribution with a mean of 75 and a standard deviation of 5. What is the approximate value of the median?

Paul buys a bag of 11 oranges for $2.86. Find the unit price in dollars per orange. If necessary, round the answer to the nearest cent. Paul buys a bag of 11 oranges for $2.86. Find the unit price in dollars per orange. If necessary, round the answer to the nearest cent. $0.23 $0.12 $0.45 $0.26 None of these answers are correct

Double the interest rate and calculate the new account balance with the new interest rate. Solve for: Rate (R) Where: r = I / Pt Principal (P): $5,000 Interest (I): $3,000 Time (t):5 Time Unit: Years R = 12%/year Equation: r = I / Pt r = 3000 / ( 5000 5 ) = 0.12 r = 0.12 converting r decimal to a percentage R = 0.12 * 100 = 12%/year The interest

In 2009, there were 33,722 traffic fatalities in the U.S. Of these, 9817 were alcohol related. 7. What is the probability that a randomly selected traffic fatality in 2009 was alcohol related? 8.What is the probability it was not alcohol related? 9. What is the probability that 2 randomly selected were both alcohol related?

Use the 2021 FICA tax rates, shown, to answer the following question. If a taxpayer is not self-employed and earns $165,000, what are the taxpayer's FICA taxes? Matching Rates Paid by Employee's Rates the Employer Self-Employed Rates 7.65% on first $142,800 of 7.65% on first $142,800 paid 15.3% on first $142,800 of net income in wages profits
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A store bought a table at a cost of $88.74 and marked it up 60%. Tina, who works as a salesperson at the store, makes a 7% commission on all of her sales. Yesterday morning, Tina sold the table. How much commission did she make from this sale? If necessary, round your answer to the nearest cent $ SUBMIT NOT READ

On the CVP graph, the fixed-expense line is Blank______. Multiple choice question. parallel to the vertical axis parallel to the horizontal axis vertical to the horizontal axis a sloped line intersecting with the vertical axis

lets say that I had 3 vectors where v_1={-a+bi,-c-di,1} and v_2={-a-bi,-c+di,1} then is the stable subspace the span of {-a+bi,-c-di} and {-a-bi,-c+di}

In anexperiment, 40% of lab mice cells exposed to chemically produced cat Mups responded positively(i.e., recognized the danger of the lurkingpredator). Consider a sample of 100 lab micecells, each exposed to chemically produced cat Mups. Let x represent the number of cells that respond positively. Complete parts a through d below. a. Explain why

3. Consideration of how personal biases, stresses, or self-interest might influence the development of or choice between courses of action. a. This might include your feelings about the particular problem or person/class of person involved. As stated in class, negative feelings are not the only ones that are problematic. Positive feelings (liking
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A high school teacher is interested in the GPA's of her Grade 12 students. The mean GPA for 25 students was 3.26 with a standard deviation of 0.33. The teacher wants to know if the average GPA has changed from last year's average of 3.43. At the 0.05 significance level, is it reasonable to conclude the average GPA has changed from the last year's

SIMPLE LINEAR REGRESSION PLEASE HELP ME UNDERSTAND HOW SOLVE PROBLEM IF YOU KNOW HOW TO DO SIMPLE LINEAR REGRESSION. ? Explain what each of the following sample correlation coefcients tells you about the relationship between the x and y values in the sample. a.r=1 b.r=-1 c.r=0 d. r=0.88 e. r=0.01 f. r= -0.98 a. What relationship exists between the
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Q17 : Why the answer is D ? These questions refer to the following graphs, which are drawn to scale. Ages are in whole years completed by December 31. DISTRIBUTION OF THE UNITED STATES POPULATION BY AGE AND SEX, 1980 AND 1986 Age 100+ 90 1980 1986 80 70 Male Female 60 50 40 30 20 10 2.5 20 1.5 1.0 0.5 0 0 0.5 1.0 1.5 2.0 2.5The "combined age" of a
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hey please answer Find the first coefficients of the MacLaurin series expansion / CT (4 + 2 2) 2 = cp + cy 202 + coat + coat ... 11 11 11 11Find the first terms of the MacLaurin series expansion where 0' represents the constant of integration. Cl: 82: 83: 1 3m)4 dzC+clm I 022 i 631
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Evaluate the following expression using the order of operations. 10 2 + (6 3) + 2(4)

Cul de las siguientes opciones representa la matriz de coeficientes del sistema

Multiple Choice Question A slice of pizza supplies 217 kcal (217 Cal). If a person weighing 140 lb expends 80 kcal per mile when walking at 2.0 miles per hour, approximately how long will it take to use up the calories from the pizza? Multiple choice question. 1 hour 36 minutes 45 minutes 5 hour 25 minutes 1 hour 20 minutes

A binomial probability experiment is conducted with the given parameters. Compute the probability of x successes in the n. n=12 p=0.35 x=

A report claims that the returns for the investment portfolios with a single stock have a standard deviation of 0. 54 , while the returns for portfolios with 32 stocks have a standard deviation of 0. 323 Explain how the standard deviation measures the risk in these two types of portfolios.

Exercise 9 Sketch the hyperobola, and label the foci, the vertices, and the asymptotes. 1 . * = 1 2. 9y2 - 4x2 = 36 3. (x-2)2 _ ( 1-4)2 9 4 = 1
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Consider the probability distribution shown below. x 0,1,2 P ( x )0.450.200.35Compute the expected value of the distribution. (Enter a number.) Compute the standard deviation of the distribution. (Enter a number. Round your answer to four decimal places.)

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