Statement of the problem:
Discrete random variable x is described by the PDF:
px(xo) = (5-xo)/12 if xo = 0,1,2
px(xo) = 0 otherwise
let d1, d2, d3,...dN represent N successive independent experimental values of random variable x.
Determine the probability that d1>d2
Determine the probability that d1+d2+...dN <= 1.0