10. A grading scale is set up for 1000 students' test scores. It is assumed that the scores are normally distributed with a mean score of 75 and a standard deviation of 15 a) How many students will have scores between 47 and 71? b) If 60 is the lowest passing score, then how many students are expected to pass the test? c) If 93 is an A, then how many students are expected to make an A?

10. A grading scale is set up for 1000 students' test scores. It is assumed that the scores are normally distributed with a mean score of 75 and a standard deviation of 15 a) How many students will have scores between 47 and 71? b) If 60 is the lowest passing score, then how many students are expected to pass the test? c) If 93 is an A, then how many students are expected to make an A?

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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Question

10. A grading scale is set up for 1000 students' test scores. It is assumed that the scores are normally
distributed with a mean score of 75 and a standard deviation of 15
a) How many students will have scores between 47 and 71?
b) If 60 is the lowest passing score, then how many students are expected to pass the test?
c) If 93 is an A, then how many students are expected to make an A?
d) If 86-93 is a B, then how many students are expected to make a B?

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