Question: Suppose that the probability is 0 2 that the value of
Suppose that the probability is 0.2 that the value of the U.S. dollar will rise against the Chinese yuan over any given week and that the outcome in one week is independent of that in any other week. What is the probability that the value of the U.S. dollar will rise against the Chinese yuan at least twice over a period of 7 weeks?
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