Don't make it too difficult.a) what is the probability that a team has fewer than 2 bilingual students?

We are choosing 5 from the 20. Of these, there are two cases, if there is 1 bilingual and when there are no bilingual.

For the 1 case, we choose 1 from the 5 binlingual and the other 4 come from the 15 non-bilingual.

For the 0 case,

Add them.

Well, 5/20 is 1/4 of the students are bilnigual. There are 5 on a team. What is 1/4 of 5?. Easy enough.b) what is the expected number of bilingual students on a team?