(Answered) Question margaret considers five purchases in the amounts 5

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Question: Margaret considers five purchases in the amounts 5, 17, 21, 8, 15 dollars with respective probabilities 0.37, 0.22, 0.38, 0.81, 0.63. Anne contemplates six purchases in the amounts 8, 15, 12, 18, 15, 12 dollars. with respective probabilities 0.77, 0.52, 0.23, 0.41, 0.83, 0.58. Assume that all eleven possible purchases form an independent class.

a. What is the probability Anne spends at least twice as much as Margaret?

b. What is the probability Anne spends at least $30 more than Margaret?

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