How to Calculate Standard Deviation and Variance 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 the formula `=VAR.P(range)` for population variance or `=VAR.S(range)` for sample variance. To calculate Standard Deviation: Use `=STDEV.P(range)` for population or `=STDEV.S(range)` for sample. Replace `range` with your data range (e.g., `A1:A10`). These functions help analyze data dispersion effectively.

FAQs & Answers

  1. What is the difference between VAR.P and VAR.S in Excel? VAR.P calculates variance based on the entire population data set, while VAR.S calculates variance based on a sample of the population.
  2. How do I choose between STDEV.P and STDEV.S in Excel? Use STDEV.P if you have data for the entire population and STDEV.S if your data is a sample from a larger population.
  3. Can I calculate variance and standard deviation for non-adjacent ranges in Excel? Yes, by using commas to separate ranges within the function, for example, =VAR.S(A1:A10, C1:C10).

Watch More

For more detailed tutorials on statistical functions in Excel, check out our videos on calculating mean, median, and other descriptive statistics to enhance your data analysis skills.

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