According to an Air France announcement, we know that 10 % of customers reserve first class seats
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Question:
According to an Air France announcement, we know that 10% of customers reserve first class seats. (a) Among the next 20 reservations, what is the probability that at least one of them reserves a first class seat if the reservations are made independently? (b) Among the next 20 reservations, what is the average number of people who book first class?
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