Private nonprofit four-year colleges charge, on average, $26,623
per year in tuition and fees. The standard deviation is $6,848.
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 23,984 per year.
c. Find the 67th percentile for this distribution. $ (Round to the
nearest dollar.)
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