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14 Oct 2022
The weight of a randomly selected bag of cement coming off a production line is a random variable with mean µ = 25 pounds and standard deviation σ = 1 pound. Assume that the weights of bags are independent from each other.
What is the standard deviation of the sum of the weights of the FOUR bags that are randomly picked?
The weight of a randomly selected bag of cement coming off a production line is a random variable with mean µ = 25 pounds and standard deviation σ = 1 pound. Assume that the weights of bags are independent from each other.
What is the standard deviation of the sum of the weights of the FOUR bags that are randomly picked?
20 Oct 2022
