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In a drama class, there are 12 females and 10 males. A group of 15 is to be chosen at random for a play. i)

In a drama class, there are 12 females and 10 males. A group of 15 is to be chosen at random for a play. i) What is the probability that all males were chosen? ii) What is the probability that at least 5 males were chosen? Iii) What is the probability that at most 5 males were chosen?

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