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In one math class of college there aer 10 males and 20 females. The professor makes 3 student teams to work on a group project.

A) How many possible teams can be made?

B) What is a probability that 2 females and 1 male will be in a group?

C) What is a probability of 3 females only?

D) What is a probabilty at least 2 females in a group?

Solution Preview

Let C(n,m)=n!/(m!(n-m)!)
A) Select 3 students from 10+20=30 students. The number of possible choices is C(30,3)=4060
B) ...

Solution Summary

This looks at counting and probability for teams in a college math class.