The table shows the coffee break, in minutes, taken by a sample of 20 employees in Uni Razak. Minutes 5-9 10-14 15-19 20-24 Number of employees 2 7 9 3 Find the standard deviation of the above data.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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The table shows the coffee break, in minutes, taken by a sample of 20
employees in Uni Razak.
Minutes
5-9
10-14
15 - 19
20 - 24
Number of
employees
2
7
9
3
Find the standard deviation of the above data.
Transcribed Image Text:The table shows the coffee break, in minutes, taken by a sample of 20 employees in Uni Razak. Minutes 5-9 10-14 15 - 19 20 - 24 Number of employees 2 7 9 3 Find the standard deviation of the above data.
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