There are 12 girls and 16 boys in a class of 28 students. Three boys are named Aaron.
The teacher will randomly choose one of the students (girl or boy) of this class to ask a question. Calculate the probability of the event A that the random questioner's name is Aaron.
The teacher will randomly choose two of the boys in this class to ask. Calculate the probability of the event B that exactly one person is named Aaron.
The teacher will randomly select three students from this class to ask questions. Calculate the probability C of the event that both sexes will be represented.
