STDEV Function in Excel – Calculate Sample Standard Deviation in Excel

STDEV function in Excel calculates the sample standard deviation of a supplied set of values. Standard Deviation, measures the deviation of number from the average value.

Standard Deviation is calculated using formula
STDEV function in Excel 2

Sample Standard Deviation is calculated using formula

STDEV function in Excel 1

Where,

  • X takes each value in the set;
  • X̄ is the average of the set of values;
  • N is the number of values.

 

Syntax of STDEV Function in Excel:

STDEV (number1, [number2], … )

Where the number arguments are numeric values for which you want to calculate the sample standard deviation.

 

Example of STDEV Function in Excel

STDEV function in Excel 3

The Above example calculates the sample standard deviation of subject scores with formula

= STDEV (A2:A13)

Which results in value 13.36776

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