5. The distribution of the marks on a recent Data Management quiz for all of the students in the class is shown in the following chart. The top row represents the mark interval and the bottom row represents the number of students who "fell into" that interval. 10% to 19.9% 50% to 59.9% 60% to 69.9% 70% to 79.9% 80% to 89.9% 90% to 99.9% 1 7 4 9 6 3 a) Create both a frequency polygon and a cumulative frequency polygon for this data set. Be sure to label your axes. b) What is the approximate mean of these marks? Provide a brief justification of how you determined your answer. c) What is the approximate median of these marks? Provide a brief justification of how you determined your answer.
5. The distribution of the marks on a recent Data Management quiz for all of the students in the class is shown in the following chart. The top row represents the mark interval and the bottom row represents the number of students who "fell into" that interval. 10% to 19.9% 50% to 59.9% 60% to 69.9% 70% to 79.9% 80% to 89.9% 90% to 99.9% 1 7 4 9 6 3 a) Create both a frequency polygon and a cumulative frequency polygon for this data set. Be sure to label your axes. b) What is the approximate mean of these marks? Provide a brief justification of how you determined your answer. c) What is the approximate median of these marks? Provide a brief justification of how you determined your answer.
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:5. The distribution of the marks on a recent Data Management quiz for all of the students in
the class is shown in the following chart. The top row represents the mark interval and the
bottom row represents the number of students who "fell into" that interval.
10% to 19.9% 50% to 59.9% 60% to 69.9% 70% to 79.9% 80% to 89.9% 90% to 99.9%
1
7
4
9
6
3
a) Create both a frequency polygon and a cumulative frequency polygon for this data set.
Be sure to label your axes.
b) What is the approximate mean of these marks? Provide a brief justification of how you
determined your answer.
c) What is the approximate median of these marks? Provide a brief justification of how you
determined your answer.
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