Determine the sample variance and standard deviation for the following data by using the computational formula. Class
Question:
Determine the sample variance and standard deviation for the following data by using the computational formula.
Class f
5–under 9 .........20
9–under 13 .........18
13–under 17 ........ 8
17–under 21 ........ 6
21–under 25 ......... 2
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Class f M fM fM 2 5 9 20 7 140 980 9 13 18 11 198 ...View the full answer
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Related Book For
Business Statistics for Contemporary Decision Making
ISBN: 978-0470910184
6th Edition
Authors: Ken Black
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