Construct a cumulative distribution function F(x) of a random
variable which matches the probability density function of another
random variable whenever F(x)\neq 1. How many different sorts can
you make?
Could you make a cdf G(x) which could be used as a pdf for all
values of x< \infty ? Give as clear a reason as
possible.
Can you create an example in which the cumulative distribution
function F(x) of a random variable X and the probability
density function f(x) of the same random variable X
are identical whenever F(x)< 1?