Sales at a local plumbing wholesaler consist of both over-the-counter sales as well as deliveries.During the course of a month,over-the-counter sales have a mean of $102,972 with a standard deviation of $13,523.Over the same time period,deliveries average $242,354 with a standard deviation of $24,956.Assuming that the sales over-the-counter are independent of deliveries,what are the mean and standard deviation of the wholesaler monthly sales?

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The Answer of Sales at a local plumbing wholesaler consist of both over-the-counter sales as well as deliveries.During the course of a month,over-the-counter sales have a mean of $102,972 with a standard deviation of $13,523.Over the same time period,deliveries average $242,354 with a standard deviation of $24,956.Assuming that the sales over-the-counter are independent of deliveries,what are the mean and standard deviation of the wholesaler monthly sales?

Sales at a Local Plumbing Wholesaler Consist of Both Over-The-Counter