Let X be binaomial with parameters n = 15 and p = .2
a) Find the expression for the density for X
b) Find the expression for the moment generating function for X
c) Find E[X] and Var X
d) Find E[X], E[X^2] and Var X using the moment generating function, thus verifying your answer to part c of the exercise
e) Find P[X<=1] by evaluating the density directly.