An office has four copying machines, and the random variable X measures how many of them are

Question:

An office has four copying machines, and the random variable X measures how many of them are in use at a particular moment in time. Suppose that P(X =0) =0.08. P(X = 1) = 0.11, P(X = 2) = 0.27, and P(X = 3) = 0.33.
(a) What is P(X = 4)?
(b) Construct and plot the cumulative function.

Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...