X1, X2, and X3 all have a normal distribution with mean 1 and variance 1. What...

Question

Question

X1, X2, and X3 all have a normal distribution with mean 1 and variance 1. What is the variance of (2 X1 X2-X3)? 1 3 st

math Statistics-And-Probability

Answer 1

Answer #1

solution Here ni, da saz have variance I then variance of 2x,+&q=&3 then v (2x, t&q=23) = V(2x) + 0 (82)+ V (23) = Ž V(XD + v

Answer 2

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