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A teacher gives the following assignment to 200 students: Check the local newspaper every morning for a week and count how many times the word "gun" is mentioned on the "local news" pages. At the end of the week, the students report their totals. The mean result is 85, with a standard deviation of 8. The distribution of scores is normal. a. How many students would be expected to count fewer than 70 cases? Show the solution and draw the normal curve b. How many students would be expected to count between 80 and 90 cases? Show the solution and draw the normal curve c. How many students would be expected to count higher than 60 cases? Show the solution and draw the normal curve

A teacher gives the following assignment to 200 students: Check the local newspaper every morning for a week and count how many times the word "gun" is mentioned on the "local news" pages. At the end of the week, the students report their totals. The mean result is 85, with a standard deviation of 8. The distribution of scores is normal. a. How many students would be expected to count fewer than 70 cases? Show the solution and draw the normal curve b. How many students would be expected to count between 80 and 90 cases? Show the solution and draw the normal curve c. How many students would be expected to count higher than 60 cases? Show the solution and draw the normal curve

MATLAB: An Introduction with Applications
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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I. Normal Distribution A teacher gives the following assignment to 200 students: Check the local newspaper every morning for a week and count how many times the word "gun" is mentioned on the "local news" pages. At the end of the week, the students report their totals. The mean result is 85, with a standard deviation of 8. The distribution of scores is normal. a. How many students would be expected to count fewer than 70 cases? Show the solution and draw the normal curve b. How many students would be expected to count between 80 and 90 cases? Show the solution and draw the normal curve c. How many students would be expected to count higher than 60 cases? Show the solution and draw the normal curve
Transcribed Image Text:I. Normal Distribution A teacher gives the following assignment to 200 students: Check the local newspaper every morning for a week and count how many times the word "gun" is mentioned on the "local news" pages. At the end of the week, the students report their totals. The mean result is 85, with a standard deviation of 8. The distribution of scores is normal. a. How many students would be expected to count fewer than 70 cases? Show the solution and draw the normal curve b. How many students would be expected to count between 80 and 90 cases? Show the solution and draw the normal curve c. How many students would be expected to count higher than 60 cases? Show the solution and draw the normal curve
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