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?