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The weight of a randomly selected bag of cement coming off a production line is a random variable with a mean of u=25lbs and standard

The weight of a randomly selected bag of cement coming off a production line is a random variable with a mean of u=25lbs and standard deviation of

=1lb. Assume the weight of the bags are independent from one another.

A. What is the standard deviation of four times the weight of one bag?

B. What is the standard deviation of the sum of the weights of the FOUR bags that are randomly picked?

C. What is the relationship between the answers to A and B?

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