The Post Office has established a record in a major midwestern city for delivering 90 percent of its local mail the next working day. If you mail eight local letters, what is the probability that all of them will be delivered the next day?
Added by Jose M.
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9. Since the letters are independent events, we can multiply the probabilities together to find the probability of all eight letters being delivered the next day. So, the probability of all eight letters being delivered the next day is: Show more…
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