Standard deviation of this customer book purchases
Suppose that the probabilities of a customer purchasing 0, 1, or 2 books at a book store are 0.2, 0.3, and 0.5, respectively. What is the standard deviation of this customer's book purchases?
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Using the solution from Problem 5 and given the list of crash times and costs, determine the new diagram and times. Assume for every day you complete the project ahead schedule you recieve a $60 bonus payment.
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