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Standard Deviation

Block Group:	Statistical Functions
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The Standard Deviation block calculates standard deviation based on a list of arguments. The standard deviation is a measure of how widely values are dispersed from the mean.

The Standard Deviation block uses the following expression:

In this expression, x is the sample value, is the mean of all x values, and n is the sample size.

For information on standard deviation, see Standard deviation on Wikipedia.

Input/Output Property

The following property of the Standard Deviation block can take input and give output.

• input n(number): Defines one of the numbers in the sample.

Output Property

The following property of the Standard Deviation block can give output but cannot take input.

• output (number): Returns the standard deviation of the input values.

Example

The following image shows an example of the Standard Deviation block.