The percentage examination scores of 747 students are given in the following table. Given that the frequency
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The percentage examination scores of 747 students are given in the following table.
Given that the frequency densities of the four classes of percentage scores are in the ratio 5 : 8 :13: 7, find the value of p and of q.
Transcribed Image Text:
Score (%) P-50 51-70 71-80 pria 81-9 165 240 195 147
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We can start by finding the class width for each of the four classes of percentage scores Since the ...View the full answer
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Related Book For
Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook
ISBN: 9781108407304
1st Edition
Authors: Dean Chalmers, Julian Gilbey
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