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Question

What is the symbol for the sample standard deviation?


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Solution

Symbol for the sample standard deviation.

Standard deviation is the measure of the dispersion of statistical data. Dispersion is the extent to which values in a distribution differ from the average of the distribution. The Standard deviation is usually represented as σ.

And symbol S or SD is used for the standard deviation of a sample, and σ(lower case sigma) for standard deviation of a population.

Hence, the standard deviation is usually represented as σ or S or SD.


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