=STDEVP(number1, [number2], ...)One free generation or explanation per browser, shared across Excel and Google Sheets. Account usage limits apply afterward.
Need more than a single STDEVP formula? Try our free AI for Excel — it reads your entire spreadsheet, answers questions in plain English, and builds charts and analysis in the same chat.
number1:
The first number or range of numbers for which you want to calculate the standard deviation.
number2:
Additional numbers or ranges of numbers (optional) for which you want to calculate the standard deviation. You can include up to 255 additional arguments.
The STDEVP function in Excel is a statistical tool that calculates the standard deviation of a population based on a given set of values. Standard deviation is a measure of how spread out the numbers in a data set are, indicating the degree of variation or dispersion from the mean (average).
In simpler terms, the STDEVP function helps you understand how much individual data points differ from the overall average, making it easier to analyze the consistency or variability of your data.
Imagine you are analyzing the test scores of a group of students, and you have the following data in an Excel spreadsheet:
| Student | Test Score |
|---|---|
| Alice | 85 |
| Bob | 90 |
| Charlie | 78 |
| David | 92 |
| Eve | 88 |
You want to find the standard deviation of the test scores for the entire group of students.
To calculate the standard deviation for the test scores, you would use the STDEVP formula as follows:
=STDEVP(B2:B6)When you apply the formula, it calculates the standard deviation of the test scores. The output would be:
| Standard Deviation of Test Scores |
|---|
| 5.48 |
Here, the standard deviation indicates how much the test scores vary from the average score.
The STDEVP function is particularly useful when you need to assess the variability of a complete population dataset. It allows you to quickly understand the distribution of your data points and make informed decisions based on that analysis.
Understanding how to use the STDEVP function can significantly enhance your statistical analysis capabilities in Excel, enabling you to extract meaningful insights from your datasets.
Happy analyzing!
You have a table where Column A contains the test scores of students in a class and Column B contains their corresponding names. You can use the STDEVP function to calculate the standard deviation of the test scores for the entire class. This helps in understanding the variability of student performance and identifying whether the scores are closely clustered around the mean or widely spread out, which can inform teaching strategies and curriculum adjustments.
Beyond the STDEVP function: Better Analyst is a full Excel AI that goes well past individual formulas. Upload any spreadsheet and ask questions in plain English — you'll get formulas, data analysis, and charts back in seconds. It's a free AI Excel assistant that works with any .xlsx, .xls, or .csv file — no plugins, no Microsoft 365 required.
Don't have a spreadsheet yet? Use our free AI spreadsheet generator to turn a text prompt into a downloadable Excel file — a full AI Excel sheet maker that builds headers, columns, and formulas from your description.
Create a free account for formula help, explanations, and spreadsheet analysis. Usage limits depend on your plan.
Browse our complete library of Excel formula guides
Compare your options
Open a neutral research prompt in the AI tool you already use. Compare capabilities, limitations, and fit before you choose.
AI answers can be incomplete. Check source links, current pricing, and product documentation before deciding.