(b) (a) Read the graph to estimate the median amount of money earned. Estimate the percentage of students who earned less than £40. (c) On a copy of the graph, show how to work out the interquartile range of the amount of money earned. Write down the value of the interquartile range.

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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40 students worked on a farm one weekend. The cumulative frequency
graph shows the distribution of the amount of money earned. No one
earned less than £15.
40
30
Cumulative
Frequency
20
10
0 5 10 15 20 25 30 35 40 45 50
Amount of Money Earned (£)
(a) Read the graph to estimate the median amount of money earned.
Estimate the percentage of students who earned less than £40.
(b)
(c) On a copy of the graph, show how to work out the interquartile range
of the amount of money earned.
Write down the value of the interquartile range.
Transcribed Image Text:40 students worked on a farm one weekend. The cumulative frequency graph shows the distribution of the amount of money earned. No one earned less than £15. 40 30 Cumulative Frequency 20 10 0 5 10 15 20 25 30 35 40 45 50 Amount of Money Earned (£) (a) Read the graph to estimate the median amount of money earned. Estimate the percentage of students who earned less than £40. (b) (c) On a copy of the graph, show how to work out the interquartile range of the amount of money earned. Write down the value of the interquartile range.
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