Problem 2
Suppose X and Y are independent random variables. The variance of X is equal to 16; and the variance of Y is equal to 9. Let Z = X – Y.
What is the standard deviation of Z?
(A) 2.65
(B) 5.00
(C) 7.00
(D) 25.0
(E) It is not possible to answer this question, based on the information given.
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The post problem 2 suppose x and y are independent random variables the variance of x is equal to 16 and the variance of y is equal to 9 let z x y what is the standard deviation of z a 2 65 b 5 00 c 7 00 d 25 0 e it is not possible to answer t appeared first on My Nursing Experts.
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The post problem 2 suppose x and y are independent random variables the variance of x is equal to 16 and the variance of y is equal to 9 let z x y what is the standard deviation of z a 2 65 b 5 00 c 7 00 d 25 0 e it is not possible to answer t first appeared on nursing writers.
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