(a) Find E[X] and Var[X]. (b) Find h(E[X]) and E[h(X)]. Which one is greater? (c) Find E[Y] and Var[Y].

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Let X be a continuous random variable with PDF
fx(x)=
=
{
10
1/8 1≤x≤9,
otherwise.
Let Y = h(X) = 1/√X.
(a) Find E[X] and Var[X].
(b) Find h(E[X]) and E[h(X)]. Which one is greater?
(c) Find E[Y] and Var[Y].
Transcribed Image Text:Let X be a continuous random variable with PDF fx(x)= = { 10 1/8 1≤x≤9, otherwise. Let Y = h(X) = 1/√X. (a) Find E[X] and Var[X]. (b) Find h(E[X]) and E[h(X)]. Which one is greater? (c) Find E[Y] and Var[Y].
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