Question

Suppose UIL is interested in the amount of money per year that parents pay for private volleyball lessons for their child. High School Sports Illustrated reports that the amount of money per year that parents pay for private volleyball lessons is normally distributed with a mean of $2400 and standard deviation $400.

a. What is the probability that a parent payed less than $2,190?

b. What is the probability that a parent payed between $2,190 and $2,825?

c. Laney was bragging that only 2% of parents payed more than her parents did on private volleyball lessons. How much did Laney's parents pay?

d. Suppose Southside High School has 20 volleyball players that took private volleyball lessons. What is the probability that the average amount their parents spent on private volleyball lessons exceeds $2200?

Answer 1

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