Mathematics Questions and Answers October 12, 2020

9015 - Learner WorkBook new [Read-Only] [Compatibility Mode] - Microsoft Word lew View AaBbCcl AaBbCcDa AaBbCcl AaBbC AaBbCcDc AaBbCcDc Aa B A Char Emphasis Heading 1 Heading 3 1 Normal Strong Title Paragraph Styles 100, 100, 99, 98, 92, 91, 91, 90, 88, 87, 87, 85, 85, 85, 80, 79, 76, 72, 67, 66, 45 a ) What is the average score (mean) of the

ohm.lumenlearning.com/assess2/?aid=4501146&cid=613... Week 1 Quiz 1hr49mins X Progress saved Submit and End Score: 1.9/63 1/16 answered VOCO . . . Question 8 0/4 pts 9 2 @ Det Describe all the numbers that are in the domain of f (t) = V4 - 7t Ot co Otz - Otz 4 Ot 2 0 ots - AJ - ots O All Real Numbers 4 ot-7 Otz otz4 Calculator Check Answer Jump to

Answer part A. (Predict the ERA for 5 wins, if it is meaningful. Select the correct choice below and, if necessary, fill in the answer box within your choice.) Homework: Sec 9.2 HW Score: 96.43%, 15.43 of 16 points 9 Points: 0.43 of 1 Question 9, 9.2.20-T Part 3 of 6 Question list 0 Question 3 0 Question 4 0 Question 5 0 Question 6 0 Question 7 0

An unknown function, h(x), was graphed. At several points along the graph, tangent lines were sketched. The slope of each tangent line was estimated. The estimated slopes are shown in the table here. x=a estimated slope of the line tangent to h(x) at x=a 0 0 1 -2/5 2 -4/5 3 -6/5 4 -8/5 What can we conclude about the mystery function h(x) and its

PROJECT: GEN. ED. ASSESSMENT - RAFFLE PROBLEM Course: Math 0342/1342 Name: LEAVE THIS BLANK, PLEASE! Students Will Demonstrate: Communication Empirical and Quantitative Reasoning Critical Thinking Setting/Background A charity organization hosts a raffle drawing at a fund-raising event. The organization sells 2500 tickets at a price of $8 each.

20. [0.5/1 Points] DETAILS PREVIOUS ANSWERS MY NOTES PRACTICE AN Math 110 Course Resources Curve Sketching Course Packet on critical points Curve Sketching Course Packet on classifying critical points using the first derivative test Determine the x-coordinates of the relative extrema of the function g(x) = x4 - 8x3 - 54x2 + 4. Enter each answer as

What is one possible explanation for the surprising results presented in Figure 2 of Chen et al (2006)?

9. (a) Determine exact values for a and b so that the exponential function g(1) = ab' passes through the points (7,9) and (12, 11). Show all of your work and thinking fully. (b) By selecting constants a, b, and c, give an example* of a function of the form f(t) = c + ab' that has the following properties: f is always decreasing, f is always

cal ikus calculus Definition: The distance between two figures is defined to be the shortest possible distance Task: Given two lines in R*3, determine a process that allows one to measure the distance between the two lines that are either skew lines or parallel. Highlight your process with at least one example per case. Ensure to explain why the

5. [5 points each] A planet orbits a star on the elliptical path 2 2 X 262 242 Meanwhile, an asteroid follows . {20017, 1441?) I I I (24, 12mm) the hyperbolic path 2 2 8 6 The star of this solar system is at the focus, (10,0). Here coordinates are measured in millions of meters. At a certain time, the planet is at the position (my) :(24, 120/13)

please provide complete solution and explanation thanks From the top make it drop. (You may dance it too). 1. If the approaching value of x is -1.6, what are the test numbers you should use when you create a table of values to evaluate the limit of a function? 6points 1.6, 2. Explain the difference between x-> c- and x->ct. 3 points 3. Can the

Floyds Bumpers has distribution centers in Lafayette, Indiana Charlotte, North Carolina Los Angeles, California Dallas, Texas and Pittsburgh, Pennsylvania. Each distribution center carries all products sold. Floyds customers are auto repair shops and larger auto parts retail stores. You are asked to perform an analysis of the customer assignments

State whether the data described below are discrete or continuous, and explain why. The exact heights of different elephants Choose the correct answer below. O A: The data are continuous because the data can take on any value in an interval. B. The data are discrete because the data can take on any value in an interval. O C. The data are discrete

Construct a pivot table putting political party affiliation on the rows and values areas and registered to vote on the columns area. Remove the blanks from Party and Registered fields. Follow the directions in steps 1-2 in the instructions document. Insert the pivot table in cells C8-C13. Count of Party Column Labels -T Row Labels -Y No Yes Grand

explores using hypothesis testing to determine whether significant mean differences exist in certain scenarios. Step 1: Find solutions to the following problems. Be sure to include all relevant information for each of the following problems, including hypotheses, critical value, degrees of freedom, and a statement about significance. Researcher

3. WHAT IS LOFTING AND HOW THE SECOND DERIVATIVE IS USED IN ITS PROCESS? (10 points). *

3. WHAT IS LOFTING AND HOW THE SECOND DERIVATIVE IS USED IN ITS PROCESS (10 points).

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Question 2 of 5

Question 2 of 5 Consider the given system. 10 1 (a) Find the eigenvalues and eigenvectors associated with the matrix of the given system of equations, where XI where x2 eTextbook and Media (b) Using the above results, express the general solution of the given system of equations in terms of realvalued functions. (Use constants and c2.) 5 cos 71

A personality test has a subsection designed to assess the "honesty" of the test-taker. Suppose that you're interested in the mean score, u, on this subsection among the general population. You decide that you'll use the mean of a random sample of scores on this subsection to estimate u. What is the minimum sample size needed in order for you to

In a study to estimate the proportion of residents in a certain city and its suburbs who favor the construction of a nuclear power plant, it was found that 52 of 100 urban residents favor the construction, while only 34 of 125 suburban residents are in favor. The researcher wants to see if there is a difference between the proportion of urban

Predict the following regression curve and forecast ,calculate the period if any (with power bi) Google Adwords - Monthly Statistics Device: Select values to display: Campaigns Cost Total Cost: 4,545 6,046 6,307 6,638 4,116 7,954 9,987 8,527 8,309 8,026 10,720 8,135 Month: Apr/2021 Mar/2021 Feb/2021 Jan/2021 Dec/2020 Nov/2020 Oct/2020 Sep/2020

Find a formula for f-1(x) and (f 1) (x) if f(x) = -V2 -x f- 1 ( 2 ) = ( f-1 )' (20 ) =Find a formula for f-1(x) and (f-1) (x) if f(xc) = x 3 f- 1 ( ac ) = ( f- 1)' ( 20 ) =Find a formula for f-1(x) and for (f-!)'(x) if f ( a) = - 3 +1 f 1( ac ) = ( f-1)' (20 ) =

Determine the average cost of producing 50 items if the total cost is given by the function C(x)=2x^2-200x+100,000 where x is the number of units produced.a) $95,000 b) $9,500 c) $1,900 d) $190 e) Not enough information is given to determine the average cost.

Please summarize Part (a), (b) and (c) in a simplified report: Part (a) With reference to Figure 1 below, Year 2019 5852.65625 Standard Error 249.2331521 Median 5800 Mode 5630 Standard Deviation 14093039 Sample Variance 1987829.007 0.025106071 0348011099 6110 3100 Sum 137235 Count 32 Confidence Level(99.0%) 6839199373 Upper Limit 6536.576187 Year

5) A sample is a subset from a ____ Random survey Population Tally Frequency distribution 6) Which statement is most true about the simple average (or mean)? The mean is sensitive to extreme values The mean is not sensitive to extreme values One need not know how many observations are in a data set to calculate the mean. The mean describes the

Choose the phrase that best describes the matrix. -1 -3 -1 9 -9 -1 -1 -3 4 coefficient matrix O augmented matrix in row-echelon form O augmented matrix O none of the above

1. Determine the derivative of each of the following. c) y - 6x - 4x2 - 2x . -; x * 0 2x d) y = 5vx-3x3 e) y = (2x - 1)(5x + 4) f) y = 2x - - g) y = /x - 4/x + 6x - 5; x 20 hy = x i) y = XIN + 1/x j) y = 3 k) y = mx-p + 2. Determine the equation of the tangent to the curvey = 7 -4x- 5x2, given that the slope of the tangent is 1. 3. Determine the

Demonstrate your knowledge of what anegatively skewed distribution looks like and explain its meaning. Demonstrate your knowledge of what apositively skewed distribution looks like and explain its meaning. Demonstrate your knowledge of what a bimodal distribution looks like and explain its meaning

Living Angels Christian Academy has 5, 000 Grade 11 students. A researcher wishes to use the Grade 10 students in her study. Use the Table of Random Numbers to identify the students to be included in the sample = 25. (*Use the Table of Random Numbers attached to this module)

Use the tabulated values of f to evaluate the left and right Riemann sums for n = 10 over the interval [0,5]. X 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 f(x) 3 5 11 18 24 36 30 15 8 4 1 The left Riemann sum is (Simplify your answer.)

point(s) possible An initial investment amount P, an annual interest rate r, and a time t are given. Find the future value of the investment when interest is compounded (a) annually, (b) monthly, (c) daily, and (d) continuously. Then find (e) the doubling time T for the given interest rate P = $20,000, r=3.9%, t= 27 months a) The future value of

QUESTION 2 Explain, in a complete sentence or two, why 321 in base 5 is not equal to 321 in base 10 (other than they have different bases)

So I keep attempting this problem and using the rules of derivatives I should get -10x+1 but I'm not getting that using the definition and limit rule. Please help! What am I doing wrong? - 10x +1 1. Use the definition of a derivative (limits) to find the derivative of g(x )=-5x2+x. 9' ( x ) = lim F CX+ AX) - f ( K ) > (xth ) (xth ) 4X-20 ( x.+ AK)

Task 1 Develop a crows foot ERD for the above scenario (your tutor will give you some time to work on this, then lead a discussion on the solution)

1. Explain how two data sets could have equal means and modes but still differ greatly. Give an example with two data sets to illustrate. 2) If your score on your next statistics test is converted to a z score, which of these z scores would you prefer? Explain your answer. -2.50, -1.50, 0, 1.00, 2.25 3) Dave is a college student contemplating a

A manufacturer has a steady annual demand for 35,840 cases of sugar. It costs $8 to store 1 case for 1 year, $35 in setup cost to produce each batch, and $16 to produce each case. (a) Find the number of cases per batch that should be produced to minimize cost. (b) Find the number of batches of sugar that should be manufactured annually. (a) The

Given: (x is number of items) Demand function: d(x) = 300 - 0.3x Supply function: s(x) = 0.5x Find the equilibrium quantity: Find the producers surplus at the equilibrium quantity: Submit

can anyone help with these 2 please? 1. Multiple Choice How many critical points does the function f(x) = (x - 2)5 (x + 3)4have? (A) One (B) Two (C) Three (D) Five 2. Multiple Choice For what value of x does the function f(x) = (x - 2)(x - 3)2 have a relative maximum? 7 (A) -3 (B) (C) (D) 3 3

What is the shape of the sampling distribution of r? In what way does the shape depend on the size of the population correlation?

ASSIGNMENT 2 Due I'lprrl Thursday, September 15 Total Marks: 41] This assignment covers material in chapters 5-9 of the Unit Notes. R is not required in this as signrnent, but may be used if you wish. If software is used, attach relevant output to support your answers. No data files are required. 1. [It] marks] An automated bloodvpressure machine

Consider the triangle shown below where m/C = 52, b = 11 cm, and a = 22 cm. 52 22 cm 11 cm x cm B Use the Law of Cosines to determine the value of z (the length of AB in cm). I = Preview Statement of the Law of Cosines. Submit Question 1. Points possible: 1 Licer Unlimited attempts. Message instructor about this question Post this question to

Generate an excel formula that will return a time 18 hours after the current time. Please show the formula in excel with instructions so I can accomplish this on my own.

Using the method of undetermined coefficients, determine the form of a particular solution yp (t) for the given differential equation. (Do not evaluate the coefficients). y" - y = 8e + tel + 512," O yp (t) = (Antz + Alt + Ag)eat O yp (t) = t( At2 + Alt)et O yp (t) = t( Antz + Alt + Ao)et O Up (t) = to ( Ant2 + Alt + Ao)eat O yp (t) = (Ant? +

A Pew Research study conducted in 2017 found that approximately 75% of Americans believe that robots and computers might one day do many of the jobs currently done by people (Pew Research website, http:f/www.pewinternet.org/2017I10/04Iamericans- attitudes-toward-a-future-in-which-robots-and-computers-can-do-rnany-human-jobsn. Suppose we have the

2. Find the maximum value of f (@) = 0.5 20 + te to for the interval 0

of O.S 20 2 t s 30. Skech gaph of

Starting on January 1, we measure the noontime temperature (in degrees Celsius) at Newark Airport every day for one year. This experiment generates a sequence, T(1), T(2), . . . , T(365), of temperature measurements. A simple model (in degrees Celsius) for the daily temperature process Tn is given by Starting on January 1, we measure the noontime

Topic: Integration Bu substitution Hi, I was hoping you could solve this question using integration By substitution. Solve the first 15 questions and the questions in green(Must). Please keep your handwriting neat, provide each step and capture your work using a cam scanner. 1. 3x3 Vr' + 5dr 12. 23. (212 + 3)2 2. 23 (2 +2 )dr sin (x) 13. - 12 24.

The relationship between the number of square feet and the selling price (in dollars) of a sample of homes for sale in Cincinnati, Ohio, is observed to be linear, with a correlation of r = 0.78. A regression equation is subsequently constructed in order to predict selling price based on number of square feet. What percentage of the variability in

Question 37 2.5 pts If U1, U2, and Us are PRN's and &(x) is the standard normal c.d.f., find Pr (24 1 (U ) - $ 1(U2) + $ 1(U3)

Can somoane explain me this problem please? I'm stuck: The results for a second attempt of one exam were recorded and the results are represented in the following boxplot:

Question 19, 10.2.17-T HW Score: 67.19%, 13.44 of 20 points

Question 19, 10.217T O Part 1 of 5 HW Score 67.19, 13.44 of 20 points O 0.36 ofl In a clinical trial, 18 out of 859 patients taking a prescription drug daily complained of flulike symptoms. Suppose that it is known that 1.7 of patients taking competing drugs complain of flulike symptoms. Is there sufficient evidence to conclude that more than 1.7

(1 point) The following problem is similar to one from the textbook: The following table gives the percentage, P, of households with a television set that also have a VCR. (Unlike the data in your textbook, this data is ficticious). Year 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 % having VCR 0.2 0.4 0.8 1.5 2.6 5.3 9.7

Evaluate f(x) = square root of (3+6x) Evaluate ((f(1+h)-f(1))/h Evaluate lim h>0 ((f(1+h)-f(1))/h Please don't use l'hospital rule or differentiation rules/formulas

checking for more understanding 16 / = (9 - '8 - ) If

I _ Solve the problem. A student is taking a standardized test consisting of multiple choice questions for which there are ve options for each question. Five points are awarded for each correct answer, but the student loses 2 points for an incorrect answer. Questions left blank neither receive nor lose points. What is the minimum number of choices

snhu mat140 o provide explanations of your solutions to each question. You should attempt all of the questions before submitting your exam. There is a time limit of 180 minutes. pause the timer so that the exam should be completed in one sitting. Remember that you are assessed on your explanations to the problem and therefore need to stion. A

Questions: Read the author's response below and evaluate their answer. What are your thoughts? Do you agree or disagree? Why or why not? What can you add to extend the discussion? There are four main threats to validity to be aware of if using the mixed-methods convergent research design. One major threat is not using parallel concepts for both

Please help :-) thank you 21. When the calculated F ratio is equal to or greater than the critical, tabled value of F for a given number of degrees of freedom, then: a. alpha is inflated b. Ho is accepted c. Ho is rejected d. none of these 22. If the MS between equals 10, and the MS within equals 10, the total degrees of freedom are equal to: a.

Given the equation 10 sec I da sin + +sin x tan a If you integrate the given equation, the equation can be solve using what formula(s)? O using f csc2 u du O using f cos u du O using f sin u du O using f csc u du O using f sec u du O using f sec2 u du Next

please solve by IBP, in a way that is taught in 1st yr college. if possible, please include explanations for each step taken

The following estimated regression equation based on 10 observations was presented. y = 26.1270 + 0.6906x, + 0.3980X, (a) Develop a point estimate of the mean value of y when x, = 160 and x, = 320. (b) Develop a point estimate for an individual value of y when x, = 160 and x, = 320

1. When you construct a table, when might it be beneficial to use relative rather than absolute frequencies? 2. What types of graphs can be used to display nominal or ordinal observations? Discrete or continuous observations

Using the graph below,please:1. Determine the equation of this function if it was produced from y= ?x using a vertical strech and not a horizontal strech.2.Determine the domain and range of this function.3.Determine the equation of this function if it was produced from y= ?x using a horizontal strech and not a vertical strech. 1. The graph of the

A manufacturer of "We All Love Business Calculus" tee shirts has a monthly fixed cost of $55,000 and a processing cost of $8 for each tee shirt produced. The shirts sell for $13 each. If the break- even level for the production and sale of x tee shirts is defined to be where the total revenue is equal to the total cost, find the break-even value

https://docs.google.com/spreadsheets/d/1kIgy5mGHHfLwF5wf8j6R0ZjcYGsJAKGJ/edit?usp=sharing&ouid=106739749803001660378&rtpof=true&sd=true Based on your findings, answer the following questions: How many chicken value meals can they expect to sell at $5.50 each? If the cost of prepping a dinner is $1.50, at what price point do you maximize your

Given the augmented matrix 5 4 1 10 -5 4 3 What is on of the next steps in reducing the given matrix using Gauss Jordan elimination? Perform said next step in reducing the matrix

According to the frequency table that you created,85.7%of the sample watch___________ hours of tv each week. Using R, the following frequency distribution table was determined: freq i) l 2 J 11101813 However, if you want to compute it manually, you can determine the frequency distribution table by simply getting the frequency of occurrence of each

Engineering Mathematics 2 Determine the second order differentiation for the following function:

y erx 3 marks

A recent study showed that the amount of sleep college students get each night could be described by model that is roughly bell shaped with x =6.5 hours and s = .42 hours. Use the Empirical Rule to describe the distribution. (There should be three parts to your answer and the answer should be stated in terms of the problem. For example: XX% of

Complete each of the following calculations by providing the correct formula and values that you are using for each problem. Your grade will be based on selecting the appropriate formula, substituting the appropriate values, and correctly calculating the answer. A sample size of n = 120 produced the sample mean of X = 24.3. Assuming the population

(b) The owner of a hypermarket attempts to analyse the relationship between advertising expenditures and sales. He recorded the monthly advertising budget (RM '000) and the monthly sales (RM millions) for a sample of 12 months. The following summary statistics have been generated. SUMMARY OUTPUT Regression Statistics Correlation Coefficient, r

7. Solve the inequality and give your answer in interval notation. (5x+1 ) (7 - 14 x) > 0 4M 7. 8. Find an equation of the line tangent to the circle : x ' + y! = 25 at the point P (-3, - 4 ). 4M 8

Use Given-Required-Solution in answering problems. Provide cash flow diagram. A certain government-issued 10-year bond pays an interest at 16 percent every three months. If the total quarterly expense is 83,000 and the bond earns at 20 percent every three months, what is the face value of the bond? How much in the present should he pay for the

In Exercises 3-8, find the limit of each function (a) as x ->co and (b) as x - -co. (You may wish to visualize your answer with a graphing calculator or computer.) F 3. f(x) = - 3 4. f( x) = 1 - 3 5. g(x) = 6. g(x) = 2+ (1/ x) 8 - (5/x2) 3 -5+ (7/x) 3 - (2/x) 7. h(x) 8. h(x) 3 - (1/x2) 4 + (V2/x3 )

it portal - Search Gateway (Student Portal) - East X 3.3: Graded Homework X egcc.instructure.com courses/83732/assignments/979417 MTH120 > Assignments > 3.3: Graded Homework 2_FOURTH 3.3: Graded Homework me Due Sunday by 11:59pm Points 9 Submitting an external tool Available after Oct 24 at 12am nouncements labus 3.3: Graded Homework Progr

2 arctan 3x Evaluate the indefinite integral 1 + 9x2

2 Evaluate the indefinite integral arctan(3r) 1 9x2

2. Tests of independence A New York Times/CBS News poll conducted in October 2007 surveyed American consumers on their views of Chinese products. Consumers were asked whether they noticed the country of origin of their purchases. They were also asked about changes in their buying habits because of the recalls of Chinese-produced goods. The

N WeBWork homework for Section X Course Hero X Question 21 - Q5 - Connect X + V WeBWork : 107-Spring-2022 : 10 X X -> C C a math-webwork2.unl.edu/webwork2/107-Spring-2022/107_Section_6.1/2/?effectiveUser=22830293&user=22830293&key=qXBZ3PSKOLFeeQtkNZRP3wFgwJGXVFEW Apps MyRED | University... UNL UNL 2021-2022 Ch... N Dashboard BSAD191 canvas Dear

20. Consider the graph of f (3:) = 6"\". Find the area that is shaded from a: = 0 to x = 1116

Let R be the region below y=5\\/;_( and above the x-axis between x=0 and x=4. Let S be the solid obtained by rotating R about the y-axis. Set up, but do not evaluate, an integral equal to the volume of S

The five number summary for a set of data is given below. Min Q1 Median Q3 Max 80 84 86 90 99What is the interquartile range of the set of data?

\fHow much is the average energy consumption by Australian households? The Excel file DailyElectricity.xIsx contains 30 Australian households' daily electricity consumption. Use Excel to complete the following sample summary statistics, assuming the daily electricity consumption is normally distributed. Type in each of the answers. 1. (1 mark)

[0/1 Points] DETAILS PREVIOUS ANSWERS SCALCCC4 6.1.040. MY NOTES | ASK YOUR TEACHEI Find the area of the region bounded by the parabola y = 5x2, the tangent line to this parabola at (2, 20), and the Xaxis. |:] 1: Need Help? _'' Submit Answer . [0/1 Points] DETAILS PREVIOUS ANSWERS SCALCCC4 6.1.041. MY NOTES | ASK YOUR TEACHEI Find the number b

l According to a study done by ' a unlversiiy student, the probability a randomly selected individual will not cover his or her mouth when sneezing is 0.267. Suppose you sit on a bench ' ' l in a mall and observe people's habits as they sneeze. I I (a) What Is the probability that among 12 randomly observed individuals exactly 4 do not oover their

You pick 8 cards (without replacement) from a standard deck of 52 playing cards (which contains 4 aces). For each ace that you get, you roll a die. What is the expected sum of the die rolls?

The increasing spread of false stories ("fake news") represents one of the great challenges digital societies face in the 21st century. A German study investigated the effect of media sources (real news vs. fake news sources) on how much individuals believed an online news article and their likelihood of sharing the news article on social media.

Which definite integral can be expressed as lim >" ( 7 - 3ck + 5) Ax , where P is any partition of [2, 5]? O ASS Sa -3 da O B. S2 x2 -3 dx c. S2 23 - 3x2 +5 dx D. S5 (24 - 3x2 + 5) dx O E S5 4x3 - 3x + 5 dx

Decide whether the normal sampling distribution can be used. If it can be used, test the claim about the population K proportion p at the given level of significance a using the given sample statistics. Claim: p # 0.25; a =0.05, Sample statistics p =0.21, n = 100 O B. The test cannot be performed. Find the z-test statistic. Select the correct

A researcher analyzed differences in the average number of hours that students spend studying for a random sample of 46 students across four different universities. F (obtained) was -0.45. Assuming alpha is set at the 0.05 level, what should researcher conclude aboutH0

Random variables are used to model situations in which the outcome, before the fact, is uncertain. One component in the model is the sample space. The sample space is the list of all possible outcomes (or a range of possible values). For each value in the sample space, there is an associated probability. The probability can either be an estimate

Develop Your Regression Model Scatterplot: Provide a graph of the scatterplot of the data with a line of best fit. Explain if a regression model is appropriate to develop based on your scatterplot. Discuss associations: Based on the scatterplot, discuss the association (direction, strength, form) in the context of your model. Identify any possible

X is Negative Binomial (parameters r, p). On X = x conditionally, Y is Gamma (parameters a, A = 1/X). Find Var(Y)

Questiom 6,7,8 6. A Little League baseball coach wants to know if his team is representative of other teams in scoring runs. Nationally, the average number of runs scored by a Little League team in a game is 7.8. He chooses nine games at random in which his team scored 7, 8, 5, 9, 4, 11, 9, 8, and 8 runs. Is it likely that his team's scores is

Attempts: Keep the Highest: 16 4. Inference about the difference between two means (unequal variances) Most consumers are not diamond experts, so many rely on an Independent certification body to determine a diamond's value. Diamonds are aspessed on four characteristics, referred to as the "four Cs": carat weight, color, clarity, and cut. Several

According to a study done by Nick Wilson of Otago University Wellington, the probability a randomly selected individual will not cover his or her mouth when sneezing is 0.267. Suppose you sit on a bench in a mall and observe people's habits as they sneeze. Complete parts (a) through (c). (a) What is the probability that among 18 randomly observed

The size of an urban rabbit population can be modeled with the following logistic model, where t is measured in months:

The following are distances (in miles) traveled to the workplace by 18 employees of a certain university, 14, 18, 40, 6, 2, 10, 11, 16, 9, 34, 7, 22, 18, 29, 24, 36, 9, 1 Send data to calculator Find 25 and 80 percentiles for these distances. (If necessary, consult a list of formulas.) (a) The 25 percentile: miles b) The 80" percentile: miles X

what is the probability that you flip a penny 5 times and get a head every time? round answer to nearest thousandth. is this independent event or dependent event

Plz answer each of them thanks so much ! 10. Are the following statements true or false? a. If u is a unit vector, then f.(a, b) is a vector. b. If u is perpendicular to V f(a, b), then fa (a, b) = (0, 0). c. Suppose fr(a, b) and fy(a, b) both exist. Then there is always a direction in which the rate of change of f at (a, b) is zero. d. If f(x, y)

Coach Spike has a big decision to make. His whole college career depends on the success of this coming season. Hesimplyneeds to know which of his freshman running backs would be the best bet to average at least five yards per carry. His choices include: Player Total # of Yards # of Carries Gained Last Year Buford 1,180 325 Willie 960 220 Tank