In Problem 3 in the Geometric distribution chapter.
It talks about some sort of combination of two random variables, I've attached the problem below.
I can understand why the E(s)= e(x)*e(n) , thats easy enough. But can someone more thoroughly explain how they derived the Var(s) for this problem?
It talks about some sort of combination of two random variables, I've attached the problem below.
I can understand why the E(s)= e(x)*e(n) , thats easy enough. But can someone more thoroughly explain how they derived the Var(s) for this problem?
Question about Problem in Guo manual
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