What symbol is used for the standard deviation when it is a sample statistic? what symbol is used for the standard deviation when it is a population parameter?

QUESTION POSTED AT 02/06/2020 - 01:41 AM

Answered by admin AT 02/06/2020 - 01:41 AM

You use the lower case letter s for the sample standard deviation

You use the greek letter sigma (written as \sigma) for the population standard deviation
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