A Small Business Just Leased a New Computer and Color

Essay

A small business just leased a new computer and color laser printer for three years. The service contract for the computer offers unlimited repairs for a fee of $100 a year plus a $25 service charge for each repair needed. The company's research suggested that during a given year 86% of these computers needed no repairs, 9% needed to be repaired once, 4% twice,
1% three times, and none required more than three repairs.
-What are the mean and standard deviation of the company's annual expense for the service contract?