The probability of buying a movie ticket with a popcorn coupon is 0.717. If you buy 21 movie tickets, what is the probability that exactly 14 of the tickets have popcorn coupons? (Round your answer to 3 decimal places if necessary.)

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The probability of buying a movie ticket with a popcorn coupon is 0.717. If you buy 21 movie tickets, what is the probability that exactly 14 of the tickets have popcorn coupons? (Round your answer to 3 decimal places if necessary.)

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