The average price of a college math textbook is $161 and the standard deviation is $25. Suppose that 8 textbooks are randomly chosen. Round all answers to 4 decimal places where possible.For the group of 8, find the probability that the average price is between $165 and $178. Find the first quartile for the average textbook price for this sample size. (round to the nearest cent)

Given that, Mean=161 Standard deviation=25 Here in the option they mentioned that group =8.

Answered: The average price of a college math…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The average price of a college math textbook is $161 and the standard deviation is $25. Suppose that 8 textbooks are randomly chosen. Round all answers to 4 decimal places where possible.

For the group of 8, find the probability that the average price is between $165 and $178.
Find the first quartile for the average textbook price for this sample size. (round to the nearest cent)

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