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Variance Formula For Excel

Variance Formula For Excel - 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. It assesses the average squared difference between data values and the mean. The variance reflects the variability of your dataset by taking the average of squared deviations from the mean. Variance measures the spread between numbers in a data set. Variance is a statistical measurement of how large of a spread there is within a data set. Subtract the mean and square the result (the squared difference). The standard deviation squared will give us. Then calculate the average of those squared. The units of variance are the square of the units measured in the data set. It helps us determine how far each number in the set is from the mean or average, and from every other number in the set.

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