Mathematics, 18.04.2021 05:30 loveoneonly9153
Private nonprofit four-year colleges charge, on average, $26,423 per year in tuition and fees. The standard deviation is $7,434. Assume the distribution is normal. Let X be the cost for a randomly selected college. Round all answers to 4 decimal places where possible.
a. What is the distribution of X? X ~ N( , )
b. Find the probability that a randomly selected Private nonprofit four-year college will cost less than 23,012 per year.
(Round z-score up to 2 decimal places.)
c. Find the 80th percentile for this distribution. $
(Round to the nearest dollar.)
Answers: 2
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Private nonprofit four-year colleges charge, on average, $26,423 per year in tuition and fees. The s...
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