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?
If this is Permutations then the answer is D
If this Combinations then the answer is A
12 nCr 4 = 495
It's combination calculations using the binomial theorem.
That is not the correct answer. Sorry.
It's combinations. The answer is A.
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?
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?
Irving is correct.
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.
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 (+:
I know :)
I was just trying o explain to, Pink. So she can understand it.