Question
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?
A.495
B.990
C.5,940
D.11,880
Is the answer C?
Answers
Irving
That is not the correct answer. Sorry.
Anonymous
If this is Permutations then the answer is D
If this Combinations then the answer is A
If this Combinations then the answer is A
Irving
It's combinations. The answer is A.
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?
Combination is when the order DOESN'T matter.
Permutation is when the order DOES matter
Does the order matter on this?
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?
Anonymous
Irving is correct.
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.
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 (+:
Anonymous
I know :)
I was just trying o explain to, Pink. So she can understand it.
I was just trying o explain to, Pink. So she can understand it.
Irving
12 nCr 4 = 495
It's combination calculations using the binomial theorem.
It's combination calculations using the binomial theorem.
Anonymous
These are actually one of my favorite things to do. Very easy once you get it
Your welcome!!
Your welcome!!
Irving
No problem. We're all glad to help!