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The number of suits sold per day at a retail store is shown in the table, with the corresponding probabilities. Find the variance. Probability distribution

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The number of suits sold per day at a retail store is shown in the table, with the corresponding probabilities. Find the variance. Probability distribution Number of suits sold X Probability P(X) 0.2 0.1 0.3 0.2 0.2 O 1.9 O 21.1 0 8.1 O 1.4

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