SOLUTION: 1. how many combinations of students are possible if the group is to consist of exactly 3 freshmen? 2.How many combinations of students are possible if the group is to consist of

Algebra ->  Permutations -> SOLUTION: 1. how many combinations of students are possible if the group is to consist of exactly 3 freshmen? 2.How many combinations of students are possible if the group is to consist of       Log On


   

Question 840911: 1. how many combinations of students are possible if the group is to consist of exactly 3 freshmen?
2.How many combinations of students are possible if the group is to consist of all members of the same class?
Answer by Edwin McCravy(20056) About Me  (Show Source):
You can put this solution on YOUR website!
That's not enough information.  We'd have to know how many students are
freshmen, sophomores, juniors, and seniors.

1. would be 

C(number of freshmen,3}

2. would be 

C(no. of freshmen,3)+C(no. of sophomores,3)+C(no. of juniors,3)+C(no. of seniors,3)

But we can't do it if we aren't given those numbers.

Edwin