Question

Let Y have density function f(y) = cye−9y,     0 ≤ y ≤ ∞, 0,     elsewhere. b)...

Let Y have density function

f(y) =
cye−9y,     0 ≤ y ≤ ∞,
0,     elsewhere.

b) Give the mean and variance for Y.

E(Y)=

V(Y)=

(c) Give the moment-generating function for Y.

m(t) =___________, t<9

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