The mean number of mall stores visited by a customer is 49, Business Economics

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The mean number of mall stores visited by a customer is 49

The mean number of mall stores visited by a customer is 4.9 and the variance is 1.9. A new promotion increases the number of stores visited by 2. Calculate the variance of the number of stores visited with the promotion? Use the laws of expected value or laws of variance. Round your answer to two decimal places. Please explain.

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Business Economics: The mean number of mall stores visited by a customer is 49

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