There are a few different ways to use the STDEV function in Google Sheets. You can use it to calculate the standard deviation of a set of numbers, or you can use it to calculate the standard deviation of a population. You can also use it to find the standard error of a population.
The syntax of the STDEV function in Google Sheets is as follows:
=STDEV(array)
Where "array" is the range of cells that you want to calculate the standard deviation for.
The example below uses the STDEV function to calculate the standard deviation of a set of numbers. In this example, we are calculating the standard deviation of the ages of a group of people.
=STDEV(A2:A9)
There are a few occasions when you should not use STDEV in Google Sheets. One such time is when you have a list of numbers that are not measurements. For example, if you have a list of numbers that represent people's ages, you should not use the STDEV function because age is not a measure of spread. Another time you should not use the STDEV function is when you have a list of numbers that are not in order. For example, if you have a list of numbers that represent people's salaries, you should not use the STDEV function because salaries are not in order.
There are a few similar formulae to STDEV in Google Sheets. One is VAR, which calculates the variance of a set of numbers. Another is SD, which calculates the standard deviation of a set of numbers. Both of these formulae can be used to calculate the spread of a set of data, which can be helpful for determining how spread out your data is.