How to Calculate Variance and Standard Deviation in Excel: Step-by-Step Guide

Learn how to calculate variance and standard deviation in Excel using VAR.P, VAR.S, STDEV.P, and STDEV.S functions with simple examples.

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To calculate variance in Excel, use `VAR.P(range)` for population variance or `VAR.S(range)` for sample variance. For standard deviation, use `STDEV.P(range)` for population standard deviation or `STDEV.S(range)` for sample standard deviation. Simply replace `range` with your cell range, like `A1:A10`. Example:** `=STDEV.S(A1:A10)`.

FAQs & Answers

  1. What is the difference between VAR.P and VAR.S in Excel? VAR.P calculates the variance based on the entire population, while VAR.S estimates the variance from a sample of the population.
  2. How do I choose between STDEV.P and STDEV.S functions? Use STDEV.P when you have data representing the whole population, and STDEV.S when the data is a sample of the population.
  3. Can I use these formulas on non-numeric cells in Excel? No, Excel will ignore text or empty cells, but it’s best to ensure your range contains only numeric data for accurate calculations.

Watch More

For more insights on Excel statistical functions, explore our tutorials on calculating mean, median, and other descriptive statistics, as well as tips for advanced data analysis in Excel.

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