Variance Formula Discrete Random Variable Explained
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Variance Formula Discrete Random Variable Explained
Learn how to calculate the variance of a discrete random variable X with possible values x1, x2, ..., xn and probabilities p1, p2, ..., pn respectively. The variance formula is crucial for understanding the spread of values in probability distributions. This video explains two key formulas: sigma x squared equals the sum from i equals 1 to n of ...
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