Как пользоваться функцией STDEVA в Excel

The statistical function STDEVA (STDEV) is used to calculate the standard deviation of a sample. It is utilized in both Microsoft Excel and Google Sheets for data analysis. Standard deviation helps to determine how much data varies from the average value. ## Microsoft Excel ### Syntax excel =STDEVA(number1, [number2], …) ### Parameters — `number1` (required): The first number or range of cells for which you want to calculate the standard deviation. — `number2`, … (optional): Additional numbers or ranges of cells. ### Example Usage Suppose you have data on a company»s weekly revenue (cells A1:A7). To calculate the standard deviation of this sample, use the formula: excel =STDEVA(A1:A7) ## Google Sheets ### Syntax excel =STDEVA(value1, [value2], …) ### Parameters — `value1` (required): The first value or range of cells for which you want to calculate the standard deviation. — `value2`, … (optional): Additional values or ranges of cells. ### Example Usage Assume there are data on air temperature over a month (cells A1:A30). To find the standard deviation of this sample, use the formula: excel =STDEVA(A1:A30) ## Tasks that can be accomplished using the STDEVA function — Assessing data spread in a sample. — Analyzing the variability of values. — Determining the degree of risk in financial models. The STDEVA (STDEV) function allows for quick and convenient calculation of the standard deviation of a sample in Excel and Google Sheets, making it a powerful tool for statistical data analysis.

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