4. Let X be a discrete random variable with E (X) = 3 and Var(X) = 0.5, What are the mean%3Dand 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 randomlychosen. 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) = .8944B. P(Z >1.25) =.1056C. P(Z <1.25) = .8944D. P(-1.25 sZ 31.25) = .7888

Since you have asked multiple questions, we will solve the first question for you. If you want any…

4. Let X be a discrete random variable with E (X) = 3 and Var(X) = 0.5, What are the mean 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.

4. Let X be a discrete random variable with E (X) = 3 and Var(X) = 0.5, What are the mean 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.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

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

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