How to Calculate Variance in Excel: Step-by-Step Guide

Learn how to easily calculate both population and sample variance in Excel using VAR.P and VAR.S functions.

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To calculate variance in Excel, follow these steps: 1. Enter your data into a column or row. 2. Click an empty cell where you want the variance result to appear. 3. Use the formula `=VAR.P(range)` for population variance or `=VAR.S(range)` for sample variance. Replace `range` with the cell range of your data (e.g., `A1:A10`). 4. Press Enter. The cell will now display the calculated variance based on your data set.

FAQs & Answers

  1. What is the difference between VAR.P and VAR.S in Excel? VAR.P calculates the variance for the entire population, while VAR.S calculates variance based on a sample of the population.
  2. How do I select the data range for variance calculation in Excel? Highlight or enter the cell range containing your data, such as A1:A10, within the VAR.P or VAR.S formula.
  3. Can I calculate variance for data arranged in rows using Excel formulas? Yes, you can use VAR.P or VAR.S with ranges in rows just like columns, for example B1:F1.