Consider the result of an exam taken by 120 students, as given in the following relative frequency distribution Grade Less than 50 50-59 60-69 70-79 80-89 90-100 Cumulative Frequency 15% 10% 30% 25% 15% 5% How many students received at least a 70 on this exam? 54 45 30 66
Consider the result of an exam taken by 120 students, as given in the following relative frequency distribution Grade Less than 50 50-59 60-69 70-79 80-89 90-100 Cumulative Frequency 15% 10% 30% 25% 15% 5% How many students received at least a 70 on this exam? 54 45 30 66
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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Transcribed Image Text:Consider the result of an exam taken by 120 students, as given in the following relative frequency distribution
Grade
Less than 50 50-59 60-69 70-79 80-89 90-100
Cumulative Frequency
15%
10% 30% 25% 15% 5%
How many students received at least a 70 on this exam?
54
45
30
66
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