Examples of Standard Deviation:
This tutorial is about some examples of standard deviation using all methods which are discussed in the pervious tutorial.
Example:
Calculate the standard deviation for the following sample data using all methods: 2, 4, 8, 6, 10, and 12.
Solution:
MethodI: Actual Mean Method
















MethodII: Taking Assumed Mean as





















Total 


MethodIII: Taking Assume Mean as Zero
















MethodIV: Taking as common divisor or factor





















Total 


Example:
Calculate standard deviation from the following distribution of marks by using all the methods.
Marks 
No. of Students 








Solution:
MethodI: Actual Mean Method
Marks 





























Total 





Marks
MethodII: Taking assumed mean as
Marks 





























Total 





Marks
MethodIII: Using assumed mean as Zero
Marks 
























Total 




Marks
MethodIV: By taking as the common divisor
Marks 





























Total 





Marks