Question 4The mean room and board expense per year at four-year colleges is €7,540 and standarddeviation is €1245. Assume the room and board yearly expense is normally distributed. Youselect a simple random sample of 9 colleges.a. What is the probability that the mean room and board is less than €7800?b. What is the probability that the mean room and board is between €7295 and €8765?

GivenMean(μ)=7540standard deviation(σ)=1245sample size(n)=9

Answered: The mean room and board expense per…

A First Course in Probability (10th Edition)

10th Edition

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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