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How did you come to the conclusion for the relative frequencies numbers being 0.5, 0.10, etc?

How did you come to the conclusion for the relative frequencies numbers being 0.5, 0.10, etc?

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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How did you come to the conclusion for the relative frequencies numbers being 0.5, 0.10, etc?

Answer to Problem 5TY The relative frequency histogram that represents the points scored by the 51 winning teams is as follows: Points scored by the Winning Super Bowl Teams Relative frequency 0.30- 0.25- 0.20- 0.15- 0.10- 0.05- 0.00 Explanation of Solution 14-20 8 21-27 15 28-34 14 35-41 7 13.5 Given info: The data represents the points scored by the 51 winning teams. Calculation: From the problem 'try it yourself 2' the frequency distribution is as follows: Class Frequencyf Mid point Relative frequency 42-48 4 49-55 3 20.5 Σf=51 Software procedure: 17 24 31 38 45 27.5 34.5 Points scored 52 0.16 0.29 0.27 0.14 0.08 0.06 41.5 |Σ=1 n 48.5
Transcribed Image Text:Answer to Problem 5TY The relative frequency histogram that represents the points scored by the 51 winning teams is as follows: Points scored by the Winning Super Bowl Teams Relative frequency 0.30- 0.25- 0.20- 0.15- 0.10- 0.05- 0.00 Explanation of Solution 14-20 8 21-27 15 28-34 14 35-41 7 13.5 Given info: The data represents the points scored by the 51 winning teams. Calculation: From the problem 'try it yourself 2' the frequency distribution is as follows: Class Frequencyf Mid point Relative frequency 42-48 4 49-55 3 20.5 Σf=51 Software procedure: 17 24 31 38 45 27.5 34.5 Points scored 52 0.16 0.29 0.27 0.14 0.08 0.06 41.5 |Σ=1 n 48.5
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Thank you..why did they use midpoints for the football scores rather than regular numbers as a 14, 20, etc...?

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