Consider the pdf defined by
2
f y ( y) = , y 1
y3
Show that (a) 1
f y ( y )dy = 1 (b) E(Y)=2 and (c) Var (Y) is not finite
Random Variables - The Variance. Attached is a Adobe pdf file. I am studying for a test and this is another problem that I will be using as a guide. Please give as much detail as possible so that I may understand the concept. It is a three part problem.
The solution answers the question(s) below.