Descriptive Statisticsmedium
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Two datasets are combined: Dataset A has 12 values with mean 40 and variance 25; Dataset B has 8 values with mean 60 and variance 25. Using the law of total variance, what is the overall variance of the combined dataset?
Two datasets are combined: Dataset A has 12 values with mean 40 and variance 25; Dataset B has 8 values with mean 60 and variance 25. Using the law of total variance, what is the overall variance of the combined dataset?