According to the Insurance Institute of America, a family of four spends between $400 and $3,800.00 per year on all types of insurance. Suppose the money spent is uniformly distributed.
a- What is the standard deviation of the amount spent
b- If a family is selected at random, what is the probability the spend less than $2,000.00 per year on insurance per year.
c-What is the probability a family spend more than $3,000.00 on insurance per year.