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An archer hits his target 75% of the time. If he shoots seven arrows, what is the probability of each event? (a) He hits the

An archer hits his target 75% of the time. If he shoots seven arrows, what is the probability of each event?

(a) He hits the target more than once. (Round your answer to four decimal places.)

(b) He hits the target at least five times. (Round your answer to four decimal places.)

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