How to calculate standard deviation in excel

 To calculate the standard deviation in Excel, you can use the STDEV.S function or the older STDEVP function, depending on whether you're working with a sample or a population of data. Here's how to do it:

Using STDEV.S (Sample Standard Deviation):

1. Open Excel and enter your data into a column.
2. Click on an empty cell where you want to display the standard deviation.
3. Enter the formula =STDEV.S(range), replacing "range" with the actual range of your data. For example, if your data is in cells A1 to A10, the formula would be =STDEV.S(A1:A10).
4. Press Enter.

Excel will calculate and display the sample standard deviation for your data.

Using STDEVP (Population Standard Deviation):

1. Open Excel and enter your data into a column.
2. Click on an empty cell where you want to display the standard deviation.
3. Enter the formula =STDEVP(range), replacing "range" with the actual range of your data. For example, if your data is in cells A1 to A10, the formula would be =STDEVP(A1:A10).
4. Press Enter.

Excel will calculate and display the population standard deviation for your data.

Choose between STDEV.S and STDEVP based on whether your data represents a sample or a complete population. STDEV.S is used for sample data, while STDEVP is used for population data.