What Is Variance In Statistics? Table Of Contents: What Is Variance? Examples Of Variance. How To Calculate Variance? Advantages & Disadvantages Of Variance. Why Does Variance Matters? (1) What Is Variance ? Variance refers to how the individual data points vary from each other in a sample dataset. It is the statistical measurement of the spread between numbers in a data set.   More specifically, variance measures how far each number in the set is from the mean (average), and thus from every other number in the set.   Variance is often depicted by this symbol: σ2. (2) Examples Of Variance ? Example-1 When

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