Cost of textbooks The cost of textbooks for stu- dents at a particular college has a mean of u = $836 per year with a standard deviation of o = $388. What is the probability that a random sample of 50 students spends a total of more than $45,000 on books this year? Hint: Re-express the total cost in terms of the average cost per student i.

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Cost of textbooks The cost of textbooks for stu-
dents at a particular college has a mean of u = $836
per year with a standard deviation of o = $388.
What is the probability that a random sample of
50 students spends a total of more than $45,000
on books this year? Hint: Re-express the total cost
in terms of the average cost per student x.
%3!
Transcribed Image Text:Cost of textbooks The cost of textbooks for stu- dents at a particular college has a mean of u = $836 per year with a standard deviation of o = $388. What is the probability that a random sample of 50 students spends a total of more than $45,000 on books this year? Hint: Re-express the total cost in terms of the average cost per student x. %3!
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