STDEVA function - The function of estimating standard deviations based on a sample including both text and logical values in Excel
The following article introduces you to the STDEVA function - one of the functions in the statistical function group is very popular in Excel.
Description: The function of estimating standard deviations based on a sample includes both text and logical values. Standard deviation is a measure of the dispersion of a value against the mean.
Syntax: STDEVA (value1, [value2], .)
Inside:
- value1, [value2], .: are the values you want to calculate the standard deviation, where value1 is the required parameter, the remaining parameters are optional and contain up to 254 value parameters .
Attention:
- The STDEV.S function assumes that its arguments are a sample of the set.
- Standard deviation calculated using the method 'n -1'.
- Arguments can be numbers, names or arrays that contain numbers.
- The logical value with True is 1 default, false value is 0 default.
- If the argument is an array or a reference, only values in that array are used.
- Function error occurs when arguments are text or error values cannot be converted.
- If you do not want to calculate both logical values and text -> use the STDEV function .
- STDEVA equation uses the formula:
[sqrt {frac {{sum {{{left ({x - overline x} right)} ^ 2}}}} {{left ({n - 1} right)}}}]
Inside:
+ x is the sample mean AVERAGE (number1, number2, .)
+ n is the sample size.
For example:
Calculate the standard deviation based on a sample of the values in the following data table:
- In the cell to calculate enter the formula : = STDEVA (D6: D12)
- Press Enter -> standard deviation based on a sample of the above values is:
Here the logical value is still calculated with its corresponding value.
- Where all values are logical or text values -> function returns results:
Above are instructions and some specific examples when using the STDEVA function in Excel.
Good luck!
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