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What is Mean, Variance, and Standard Deviation about?

This document discusses calculating the mean, variance, and standard deviation of discrete probability distributions. It provides formulas for finding the mean as the sum of each value multiplied by its probability, divided by the total probability. Variance is calculated as the sum of each value squared multiplied by its probability, minus the mean squared. Standard deviation takes the square root of variance. Examples demonstrate finding these values for given probability distributions by setting up table

Author

Mini Cabalquinto

Language

EN