Asked by Pink

How many ways can 4 students be chosen from a class of 12 to represent their class at a banquet?
A.495
B.990
C.5,940
D.11,880
Is the answer C?
Answered by Irving
That is not the correct answer. Sorry.
Answered by Anonymous
If this is Permutations then the answer is D

If this Combinations then the answer is A
Answered by Irving
It's combinations. The answer is A.
Answered by Anonymous
Sorry, I actually should explained instead of given what the answer could be.

Combination is when the order DOESN'T matter.
Permutation is when the order DOES matter

Does the order matter on this?
Answered by Pink
I don't know what it is. To me it's just a question I don't know how to do. The paper says probability. So which do I choose?
Answered by Anonymous
Irving is correct.
Answered by Irving
The order does not matter. 4 students chosen from a class. It would've stated it had to be in a specific order if it needed to.
Answered by Pink
Thank you both for all your help I really appreciate the time and effort you give to people who are in need of help. Many thanks to both of you (+:
Answered by Anonymous
I know :)
I was just trying o explain to, Pink. So she can understand it.
Answered by Irving
12 nCr 4 = 495

It's combination calculations using the binomial theorem.
Answered by Anonymous
These are actually one of my favorite things to do. Very easy once you get it
Your welcome!!
Answered by Irving
No problem. We're all glad to help!
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