Question
Let X and X be two identically distributed random variables with a correlation coefficient equal to 1/3 Then the variance of 3X-X + 1 is
Let X and X be two identically distributed random variables with a correlation coefficient equal to 1/3 Then the variance of 3X-X + 1 is equal to
A) 6 Var(X)
B) 8Var (X)
C) 6 Var(X) - 1
D) 10 Var(X)
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Brief Calculus & Its Applications
Authors: Larry J Goldstein, David C Lay, David I Schneider, Nakhle I Asmar
13th Edition
0321888510, 9780321888518
