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This one seems simple, but I want to be sure I'm using the correct thinking.

If there are 30 students in a class and 5 of them are to be assigned A's, 20 to be assigned B's, and the remainder C's, how many different sets of students receiving A's are possible?

2nd Part

Determine the probability of a group of 5 students being selected at random and none of the 5 being assigned an A.

None

Would this be just a 30 choose 5 question since there are 5 students who can make an A out of 30?

**1. Homework Statement**If there are 30 students in a class and 5 of them are to be assigned A's, 20 to be assigned B's, and the remainder C's, how many different sets of students receiving A's are possible?

2nd Part

Determine the probability of a group of 5 students being selected at random and none of the 5 being assigned an A.

**2. Homework Equations**None

**3. The Attempt at a Solution**Would this be just a 30 choose 5 question since there are 5 students who can make an A out of 30?

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