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Variance is a measure of how much numbers in a data set are spread out from the mean and each other.

The formula for variance (\( \sigma^2 \)) is:

\[ \sigma^2 = \frac{\sum (X_i - \mu)^2}{N} \]

Input your data set into the calculator for instant variance calculation and other statistics.

Useful in academic research, data science, finance, and quality control for statistical analysis.

**How do you calculate variance?**Variance is calculated by taking the average of the squared differences from the Mean. Formula: \( \sigma^2 = \frac{\sum (X_i - \mu)^2}{N} \).

**What is the variance of 1, 2, 3, 4, 5?**Calculate the mean (3), find the squared differences, sum them up, and divide by 5.

**What is the variance of 1, 3, 5, 7, 9?**Calculate the mean, find the squared differences, sum them up, and divide by 5.

**Variance of 6, 8, 10, 12, 14, 16, 18, 20, 22, 24?**Calculate the mean, find squared differences, sum them, divide by 10.

**Why do we calculate variance?**To understand the spread of data points in a dataset.

**What do you mean by variance?**A measure of spread in a set of numbers.

**What is the variance of 2, 4, 5, 6, 8, 17?**Calculate the mean, find squared differences, sum them, divide by 6.

**What is the variance of 2, 4, 6, 8, 10?**Calculate the mean, squared differences, sum, divide by 5.

**Mean deviation of 3, 10, 9, 4, 7, 9, 14?**Find the mean, calculate absolute differences, sum, divide by 7.

**How to calculate variance in Excel?**Use `VAR.P` for population or `VAR.S` for a sample.

**What is a high variance?**Indicates wide spread of data points from the mean.

**What is an example of a variance?**Consider scores like 65, 70, 75, 80. Variance shows deviation from their average.

Our Variance Calculator is a practical tool for comprehensive statistical analysis, enhancing understanding of complex data sets.