How to Calculate Standard Deviation

Problem: Following are the number of students enrolled in English coaching program each month for the last 7 months 24, 21, 29, 18, 26, 20, and 23. Find standard deviation by taking data (a) as sample (b) as population.

 

 

Calculation of Standard Deviation for Grouped Data

 

Problem: Following are the observations showing the age of 50 employees working in a whole sale center. Find standard deviation by taking data (a) as sample (b) as population

 

 

 

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