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math formula for variance. The variance is the average of the squared deviations about the mean for a set of numbers. If we need to calculate variance by hand this alternate formula is easier to work with.
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Where m is Mean N is the total number of elements or frequency of distribution. Here X is the data. Calculate the sample mean.
Variance is the average of squared differences of data from mean.
Variance in Geometric distribution is 1 p p 2. Displaystyle operatorname Var Xoperatorname E operatorname Var Xmid Yoperatorname Var operatorname E Xmid Y. Find variance by squaring the standard deviation with examples at BYJUS. Here X is the data.
