Calculus for Business, Economics, Life Sciences, and Social Sciences (14th Edition)
14th Edition
ISBN: 9780134668574
Author: Raymond A. Barnett, Michael R. Ziegler, Karl E. Byleen, Christopher J. Stocker
Publisher: PEARSON
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Chapter 11.4, Problem 37E
To determine
To find: The mean µ and then the probability
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8. Given that (x, y) = (2x+2y)/2k if x = 0,1 and y = 1,4, is a joint probability
distribution function for the random variables X and Y. Find: The marginal
function of y.
%3D
%3D
9. Given that f(x, y) = (2x+2y)/2k if x = 0,1 and y = 1,4, is a joint probability
distribution function for the random variables X and Y. Find: (f(x|y = 1)
4. Let X be a discrete random variable with E (X) = 3 and Var(X) = 0.5, What are the mean
%3D
and variance of h(X) = -4x + 1?
A. mean is 11, variance is 8.
B. mean is –11, variance is 8.
C. mean is –11, variance is 2.
D. mean is 11, variance is 2.
5. Suppose that 12% of microprocessors are defective. Six microprocessors are randomly
chosen. Assume that they function independently. What is the probability that they all work?
A. 0.24 or 24%
B. 0.44 or 44%
C. 0.72 or 72%
D. 0.46 or 46%
6. Which of the following standard normal probabilities are not correct?
A. P(Z s-1.25) = .8944
B. P(Z >1.25) =.1056
C. P(Z <1.25) = .8944
D. P(-1.25 sZ 31.25) = .7888
Chapter 11 Solutions
Calculus for Business, Economics, Life Sciences, and Social Sciences (14th Edition)
Ch. 11.1 - Evaluate the following, if it converges: 3dx(x1)2.Ch. 11.1 - Prob. 2MPCh. 11.1 - Prob. 3MPCh. 11.1 - Prob. 4MPCh. 11.1 - Prob. 5MPCh. 11.1 - Prob. 6MPCh. 11.1 - Prob. 1EDCh. 11.1 - Prob. 2EDCh. 11.1 - Prob. 1ECh. 11.1 - Prob. 2E
Ch. 11.1 - Prob. 3ECh. 11.1 - Prob. 4ECh. 11.1 - Prob. 5ECh. 11.1 - Prob. 6ECh. 11.1 - Prob. 7ECh. 11.1 - Prob. 8ECh. 11.1 - In Problems 928, find the value of each improper...Ch. 11.1 - In Problems 928, find the value of each improper...Ch. 11.1 - In Problems 928, find the value of each improper...Ch. 11.1 - In Problems 928, find the value of each improper...Ch. 11.1 - Prob. 13ECh. 11.1 - In Problems 928, find the value of each improper...Ch. 11.1 - In Problems 928, find the value of each improper...Ch. 11.1 - In Problems 928, find the value of each improper...Ch. 11.1 - In Problems 928, find the value of each improper...Ch. 11.1 - Prob. 18ECh. 11.1 - Prob. 19ECh. 11.1 - In Problems 928, find the value of each improper...Ch. 11.1 - In Problems 928, find the value of each improper...Ch. 11.1 - In Problems 928, find the value of each improper...Ch. 11.1 - In Problems 928, find the value of each improper...Ch. 11.1 - Prob. 24ECh. 11.1 - Prob. 25ECh. 11.1 - In Problems 928, find the value of each improper...Ch. 11.1 - In Problems 928, find the value of each improper...Ch. 11.1 - Prob. 28ECh. 11.1 - Prob. 29ECh. 11.1 - In Problems 2934, graph y = f(x) and find the...Ch. 11.1 - Prob. 31ECh. 11.1 - Prob. 32ECh. 11.1 - Prob. 33ECh. 11.1 - Prob. 34ECh. 11.1 - Prob. 35ECh. 11.1 - In Problems 3538, discuss the validity of each...Ch. 11.1 - Prob. 37ECh. 11.1 - Prob. 38ECh. 11.1 - Prob. 39ECh. 11.1 - Prob. 40ECh. 11.1 - Prob. 41ECh. 11.1 - Prob. 42ECh. 11.1 - Prob. 43ECh. 11.1 - Prob. 44ECh. 11.1 - Prob. 45ECh. 11.1 - Prob. 46ECh. 11.1 - Prob. 47ECh. 11.1 - Prob. 48ECh. 11.1 - Prob. 49ECh. 11.1 - Prob. 50ECh. 11.1 - Prob. 51ECh. 11.1 - Prob. 52ECh. 11.1 - Prob. 53ECh. 11.1 - Prob. 54ECh. 11.1 - Prob. 55ECh. 11.1 - Prob. 56ECh. 11.1 - Prob. 57ECh. 11.1 - Prob. 58ECh. 11.1 - Prob. 59ECh. 11.1 - Prob. 60ECh. 11.1 - Prob. 61ECh. 11.1 - Prob. 62ECh. 11.1 - Prob. 63ECh. 11.1 - Prob. 64ECh. 11.1 - Prob. 65ECh. 11.1 - Prob. 66ECh. 11.1 - Prob. 67ECh. 11.1 - Prob. 68ECh. 11.1 - Prob. 69ECh. 11.1 - Prob. 70ECh. 11.1 - Prob. 71ECh. 11.1 - Prob. 72ECh. 11.2 - Let f(x)={6x6x2if0x10otherwise Graph f and verify...Ch. 11.2 - Prob. 2MPCh. 11.2 - Prob. 3MPCh. 11.2 - Prob. 4MPCh. 11.2 - Repeat Example 5 if the pharmacist wants the...Ch. 11.2 - For each of the following experiments, determine...Ch. 11.2 - Prob. 2EDCh. 11.2 - Prob. 1ECh. 11.2 - Prob. 2ECh. 11.2 - Prob. 3ECh. 11.2 - Prob. 4ECh. 11.2 - Prob. 5ECh. 11.2 - Prob. 6ECh. 11.2 - Prob. 7ECh. 11.2 - Prob. 8ECh. 11.2 - Prob. 9ECh. 11.2 - In Problems 9 and 10, graph f, and show that f...Ch. 11.2 - Prob. 11ECh. 11.2 - Prob. 12ECh. 11.2 - Prob. 13ECh. 11.2 - Prob. 14ECh. 11.2 - Use the function in Problem 9 to find the...Ch. 11.2 - Use the function in Problem 10 to find the...Ch. 11.2 - Use the function in Problem 9 to find the...Ch. 11.2 - Use the function in Problem 10 to find the...Ch. 11.2 - Prob. 19ECh. 11.2 - Prob. 20ECh. 11.2 - Prob. 21ECh. 11.2 - Prob. 22ECh. 11.2 - Prob. 23ECh. 11.2 - Use the cumulative distribution function from...Ch. 11.2 - In Problems 25 and 26, graph f, and show that f...Ch. 11.2 - In Problems 25 and 26, graph f, and show that f...Ch. 11.2 - Prob. 27ECh. 11.2 - Use the function in Problem 26 to find the...Ch. 11.2 - Prob. 29ECh. 11.2 - Prob. 30ECh. 11.2 - Prob. 31ECh. 11.2 - Prob. 32ECh. 11.2 - Prob. 33ECh. 11.2 - In Problems 3336, find the associated cumulative...Ch. 11.2 - Prob. 35ECh. 11.2 - Prob. 36ECh. 11.2 - Prob. 37ECh. 11.2 - Prob. 38ECh. 11.2 - Prob. 39ECh. 11.2 - Prob. 40ECh. 11.2 - Prob. 41ECh. 11.2 - Prob. 42ECh. 11.2 - Prob. 43ECh. 11.2 - Prob. 44ECh. 11.2 - Prob. 45ECh. 11.2 - Prob. 46ECh. 11.2 - Prob. 47ECh. 11.2 - Prob. 48ECh. 11.2 - Prob. 49ECh. 11.2 - Prob. 50ECh. 11.2 - Prob. 51ECh. 11.2 - Prob. 52ECh. 11.2 - Prob. 53ECh. 11.2 - Prob. 54ECh. 11.2 - In Problems 53 and 58, find the associated...Ch. 11.2 - In Problems 53 and 58, find the associated...Ch. 11.2 - Prob. 57ECh. 11.2 - In Problems 53 and 58, find the associated...Ch. 11.2 - Demand. The weekly demand for hamburger (in...Ch. 11.2 - Prob. 60ECh. 11.2 - Prob. 61ECh. 11.2 - Prob. 62ECh. 11.2 - Prob. 63ECh. 11.2 - Shelf life. Repeat Problem 63 if...Ch. 11.2 - Prob. 65ECh. 11.2 - Prob. 66ECh. 11.3 - Find the expected value (mean), variance, and...Ch. 11.3 - Repeat Example 2 if the probability density...Ch. 11.3 - Prob. 3MPCh. 11.3 - Prob. 4MPCh. 11.3 - Prob. 5MPCh. 11.3 - Prob. 6MPCh. 11.3 - Prob. 1EDCh. 11.3 - Prob. 2EDCh. 11.3 - In Problems 16, find the mean, variance, and...Ch. 11.3 - In Problems 16, find the mean, variance, and...Ch. 11.3 - In Problems 16, find the mean, variance, and...Ch. 11.3 - Prob. 4ECh. 11.3 - Prob. 5ECh. 11.3 - Prob. 6ECh. 11.3 - In Problems 712, find the median....Ch. 11.3 - Prob. 8ECh. 11.3 - Prob. 9ECh. 11.3 - In Problems 712, find the median....Ch. 11.3 - In Problems 712, find the median....Ch. 11.3 - Prob. 12ECh. 11.3 - Prob. 13ECh. 11.3 - Prob. 14ECh. 11.3 - Prob. 15ECh. 11.3 - Prob. 16ECh. 11.3 - In Problems 1720, find the mean, variance, and...Ch. 11.3 - Prob. 18ECh. 11.3 - In Problems 1720, find the mean, variance, and...Ch. 11.3 - In Problems 1720, find the mean, variance, and...Ch. 11.3 - In Problems 21 and 22, use a graphing calculator...Ch. 11.3 - Prob. 22ECh. 11.3 - Prob. 23ECh. 11.3 - Prob. 24ECh. 11.3 - Prob. 25ECh. 11.3 - Prob. 26ECh. 11.3 - Prob. 27ECh. 11.3 - Prob. 28ECh. 11.3 - Prob. 29ECh. 11.3 - Prob. 30ECh. 11.3 - Prob. 31ECh. 11.3 - Prob. 32ECh. 11.3 - Prob. 33ECh. 11.3 - Prob. 34ECh. 11.3 - Prob. 35ECh. 11.3 - Prob. 36ECh. 11.3 - Prob. 37ECh. 11.3 - Prob. 38ECh. 11.3 - Prob. 39ECh. 11.3 - Prob. 40ECh. 11.3 - Prob. 41ECh. 11.3 - Prob. 42ECh. 11.3 - Prob. 43ECh. 11.3 - Prob. 44ECh. 11.3 - Prob. 45ECh. 11.3 - Electricity consumption. The daily consumption of...Ch. 11.3 - Prob. 47ECh. 11.3 - Product life. The life expectancy (in years) of an...Ch. 11.3 - Prob. 49ECh. 11.3 - Prob. 50ECh. 11.3 - Prob. 51ECh. 11.3 - Prob. 52ECh. 11.3 - Prob. 53ECh. 11.3 - Prob. 54ECh. 11.3 - Learning. The number of hours it takes a...Ch. 11.3 - Prob. 56ECh. 11.4 - Use the probability density function given in...Ch. 11.4 - Prob. 2MPCh. 11.4 - Prob. 3MPCh. 11.4 - In Example 4, what percentage of the lightbulbs...Ch. 11.4 - Prob. 5MPCh. 11.4 - Prob. 2EDCh. 11.4 - Prob. 1ECh. 11.4 - Prob. 2ECh. 11.4 - Prob. 3ECh. 11.4 - Prob. 4ECh. 11.4 - Prob. 5ECh. 11.4 - Prob. 6ECh. 11.4 - Prob. 7ECh. 11.4 - Prob. 8ECh. 11.4 - Prob. 9ECh. 11.4 - Prob. 10ECh. 11.4 - In Problems 914, use Table 2 in Appendix C to find...Ch. 11.4 - Prob. 12ECh. 11.4 - Prob. 13ECh. 11.4 - In Problems 914, use Table 2 in Appendix C to find...Ch. 11.4 - Prob. 15ECh. 11.4 - Prob. 16ECh. 11.4 - Prob. 17ECh. 11.4 - Prob. 18ECh. 11.4 - Prob. 19ECh. 11.4 - Prob. 20ECh. 11.4 - Prob. 21ECh. 11.4 - Prob. 22ECh. 11.4 - Prob. 23ECh. 11.4 - Prob. 24ECh. 11.4 - Prob. 25ECh. 11.4 - Prob. 26ECh. 11.4 - Prob. 27ECh. 11.4 - Prob. 28ECh. 11.4 - Prob. 29ECh. 11.4 - Prob. 30ECh. 11.4 - Prob. 31ECh. 11.4 - Prob. 32ECh. 11.4 - Prob. 33ECh. 11.4 - Prob. 34ECh. 11.4 - Prob. 35ECh. 11.4 - Prob. 36ECh. 11.4 - Prob. 37ECh. 11.4 - Prob. 38ECh. 11.4 - Prob. 39ECh. 11.4 - Prob. 40ECh. 11.4 - Prob. 41ECh. 11.4 - Prob. 42ECh. 11.4 - Prob. 43ECh. 11.4 - Prob. 44ECh. 11.4 - Prob. 45ECh. 11.4 - Prob. 46ECh. 11.4 - Prob. 47ECh. 11.4 - Prob. 48ECh. 11.4 - Prob. 49ECh. 11.4 - Prob. 50ECh. 11.4 - Prob. 51ECh. 11.4 - Prob. 52ECh. 11.4 - Prob. 53ECh. 11.4 - Prob. 54ECh. 11.4 - Prob. 55ECh. 11.4 - Prob. 56ECh. 11.4 - Problems 5558 refer to the normal random variable...Ch. 11.4 - Prob. 58ECh. 11.4 - Prob. 59ECh. 11.4 - Prob. 60ECh. 11.4 - Prob. 61ECh. 11.4 - Prob. 62ECh. 11.4 - Prob. 63ECh. 11.4 - Prob. 64ECh. 11.4 - Prob. 65ECh. 11.4 - Prob. 66ECh. 11.4 - Prob. 67ECh. 11.4 - Prob. 68ECh. 11.4 - Waiting time. The time (in minutes) applicants...Ch. 11.4 - Prob. 70ECh. 11.4 - Communications. The length of time for telephone...Ch. 11.4 - Prob. 72ECh. 11.4 - Prob. 73ECh. 11.4 - Prob. 74ECh. 11.4 - Prob. 75ECh. 11.4 - Prob. 76ECh. 11.4 - Prob. 77ECh. 11.4 - Prob. 78ECh. 11.4 - Prob. 79ECh. 11.4 - Prob. 80ECh. 11.4 - Prob. 81ECh. 11.4 - Prob. 82ECh. 11.4 - Prob. 83ECh. 11.4 - Prob. 84ECh. 11.4 - Prob. 85ECh. 11.4 - Prob. 86ECh. 11 - Prob. 1RECh. 11 - Prob. 2RECh. 11 - Prob. 3RECh. 11 - Prob. 4RECh. 11 - Prob. 5RECh. 11 - Prob. 6RECh. 11 - Prob. 7RECh. 11 - Prob. 8RECh. 11 - Prob. 9RECh. 11 - Prob. 10RECh. 11 - Prob. 11RECh. 11 - Prob. 12RECh. 11 - Prob. 13RECh. 11 - Prob. 14RECh. 11 - Prob. 15RECh. 11 - Prob. 16RECh. 11 - Prob. 17RECh. 11 - Prob. 18RECh. 11 - Prob. 19RECh. 11 - Prob. 20RECh. 11 - Prob. 21RECh. 11 - Prob. 22RECh. 11 - Prob. 23RECh. 11 - Prob. 24RECh. 11 - Prob. 25RECh. 11 - Prob. 26RECh. 11 - Prob. 27RECh. 11 - Prob. 28RECh. 11 - Prob. 29RECh. 11 - Prob. 30RECh. 11 - Prob. 31RECh. 11 - Prob. 32RECh. 11 - Prob. 33RECh. 11 - Prob. 34RECh. 11 - Prob. 35RECh. 11 - Prob. 36RECh. 11 - Prob. 37RECh. 11 - Prob. 38RECh. 11 - Prob. 39RECh. 11 - Credit applications. The percentage of...Ch. 11 - Prob. 41RECh. 11 - Prob. 42RECh. 11 - Prob. 43RECh. 11 - Medicine. The shelf life (in months) of a certain...Ch. 11 - Life expectancy. The life expectancy (in months)...Ch. 11 - Prob. 46RECh. 11 - Prob. 47RECh. 11 - Prob. 48RE
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