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Variance In Excel Formula

Variance In Excel Formula - Then calculate the average of those squared. The units of variance are the square of the units measured in the data set. The variance is the square of the standard deviation. The variance reflects the variability of your dataset by taking the average of squared deviations from the mean. The red population has mean 100 and variance 100 (sd=10) while the blue population has mean 100 and variance 2500 (sd=50) where sd stands for standard deviation. The larger the variance, the more spread a set of data is. It assesses the average squared difference between data values and the mean. Variance is a measure of how spread out a data set is, and we calculate it by finding the average of each data point's squared difference from the mean. Subtract the mean and square the result (the squared difference). Variance is a statistical measurement of how large of a spread there is within a data set.

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