Mean annual cost to attend a private university

Reference no: EM1386114

1) For the most recent year available the mean annual cost to attend a private university in the US was $26,889. Assume the distribution of annual costs follows a normal probability distribution and the standard deviation is $4,500. 95% of all students at private universities pay less than what amount?

2) According to the Insurance Institute of America, a family of four spends between $400 and $3800 per year on all types of insurance. Suppose the money spent is uniformly distributed between these amounts.

A) What is the mean amount spent on insurance?

B) What is the standard deviation of the amount spent?

C) If we select a family at random, what is the probability they spend less than $2,000 per year on insurance per year?

D) What is the probability a family spends more than $3,000 per year?

Reference no: EM1386114

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