1 Standard deviation calculator (σ)
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# Standard Deviation Calculator

Standard deviation (σ) calculator with mean value & variance online.

## Population and sampled standard deviation calculator

Enter data values delimited with commas (e.g: 3,2,9,4) or spaces (e.g: 3 2 9 4) and press the Calculate button.

 Enter data values: Population standard deviation: Sample standard deviation: Population variance: Sample variance: Mean:

## Discrete random variable standard deviation calculator

Enter probability or weight and data number in each row:

Probability Data number
 Standard deviation: Variance: Mean:

## Whole population standard deviation calculation

Population mean:

Population standard deviation:

## Sampled data standard deviation calculation

Sample mean:

Sample standard deviation:

## Discrete random variable standard deviation calculation

Random variable mean:

Discrete random variable standard deviation:

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Proportionate Equations and Corollary Equations - There are changes of conditions that enable one to go from the condition to be tackled to the alleged identical conditions and outcome conditions, by the arrangements of which it is conceivable to decide the arrangement of the first condition. In this article, we will break down in detail which conditions are called proportionate and which conditions are outcomes, give the fitting definitions, give illustrative models and disclose how to discover the foundations of the condition from the known underlying foundations of the comparable condition and condition result.

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