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Excel STDEVP Function

Excel allows us to calculate the standard deviation of the population with Excel STDEVP Function. This step by step tutorial will assist all levels of Excel users in getting the standard deviation of the defined data set.

Figure 1. Calculate the standard deviation of an entire population

Syntax of the STDEVP Function

=STDEVP(number1, [number2], ...)

The parameters of the STDEVP function are:

  • number1, [number2] – the numbers in the data range for calculating the standard deviation for the population

Setting up Our Data to Get the Standard Deviation of Population

Our first table consists of 2 columns: “ID” (column B) and “Sales” (column C). The second one has the average of the sales data with the result placed in the cell F4. The idea is to get the standard deviation of sales data based on population and to place the result in the cell F3.

Figure 2. Table structure for STDEVP Function

Get Standard Deviation Using STDEVP Function

We want to get the standard deviation of the data in the “Sales” column. In order to make the formula more clear, we will create a named range Sales for cell range B3:B13.

To create a named range we should follow the steps:

  • Select the cell range that should be named
  • Click on the name box in Excel
  • Write the name for the cell range and press enter

Figure 3. Creating a named range Sales for column “Sales”

The formula for getting the standard deviation for sales data is:

=STDEVP(Sales)

The number1 in the STDEVP function is the named range Sales.

To apply the STDEVP function we need to follow these steps:

  • Select cell F3 and click on it
  • Insert the formula: =STDEVP(Sales)
  • Press enter

Figure 4. Get the standard deviation of the population with STDEVP function

STDEVP function calculates the standard deviation of the population. This function ignores logical values and text in the data range. Formula output is $36 in the cell F3. This result means that sales values differ $36 from the mean of the sales data range.

Most of the time, the problem you will need to solve will be more complex than a simple application of a formula or function. If you want to save hours of research and frustration, try our live Excelchat service! Our Excel Experts are available 24/7 to answer any Excel question you may have. We guarantee a connection within 30 seconds and a customized solution within 20 minutes.

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