An insurance company offers its policyholders a number of different premium payment options. For a randomly selected

Question:

An insurance company offers its policyholders a number of different premium payment options. For a randomly selected policyholder, let X be the number of months between successive payments. The cumulative function of X is
(a) What is the probability mass function of X?
(b) Compute P(4 < X < 7).
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...