- #1
chocok
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A group of 5 boys and 10 girls is lined up in random order-that is, each of the 15! permutaions is assumed to be equally likely.
a) What is the probability that the person in the 4th position is a boy?
b) What is the probability that a particular boy is in the 3rd position?
i tried to list out 1 possible combination but it gets pretty ugly since there are a total of 15 choices.. can someone please help?
a) What is the probability that the person in the 4th position is a boy?
b) What is the probability that a particular boy is in the 3rd position?
i tried to list out 1 possible combination but it gets pretty ugly since there are a total of 15 choices.. can someone please help?