At a store the checkout timeX

Xin minutes has the pdf: If

f(x)=1.1e^(-1.1x)

if 0x<

Find the following:

a) the moment generating function

MX(t)=?fort< ?

t<.

b) the first and second moments

MX(t)=

MX(0)=

MX(t)=

MX(0)=

c)

E(X)=

d)

Var(X)=