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Variance Calculation in Probability Distributions 12th Math Stats
Learn how to calculate the variance of a random variable X in probability distributions. This video covers two essential formulas: Var(X) = E(X^2) - [E(X)]^2 and Var(X) = sum from i=1 to n of (x_i - mu)^2 p_i. Understand the concept of variance, which measures how spread out the values of X are around the mean. Perfect for 12th-grade students ...
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