Private nonprofit four-year colleges charge, on average, $27,449 per year in tuition and fees. The standard deviation is $7,255. 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 23,088 per year. c. Find the 65th percentile for this distribution. $ (Round to the nearest dollar.)
Private nonprofit four-year colleges charge, on average, $27,449 per year in tuition and fees. The standard deviation is $7,255. 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 23,088 per year. c. Find the 65th percentile for this distribution. $ (Round to the nearest dollar.)
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.3: Special Probability Density Functions
Problem 53E
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Private nonprofit four-year colleges charge, on average, $27,449 per year in tuition and fees. The standard deviation is $7,255. 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 23,088 per year.
c. Find the 65th percentile for this distribution. $ (Round to the nearest dollar.)
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