What is the meaning of Samona? How popular is the baby name Samona? Learn the origin and popularity plus how to pronounce Samona
Variance. Variance (Ï 2) is a measure of the dispersion of a set of data points around their mean value. In other words, variance is a mathematical expectation of the average squared deviations from the mean. It is computed by finding the probability-weighted average of squared deviations from the expected value. Variance measures the variability from an average (volatility).
Most budget analysts calculate a variance by subtracting the budget figure from the actual spending figure. And, they normally report variance both as an amount and as a percentage of the budget figure. This is because both figures are helpful, later, for variance analysis.