How many ways are there to choose a committee of 7 people from a group of 10 people?

Question

anonymous · Answer

you are being asked to compute "10 choose 7" sometimes written as 
$$\dbinom{10}{7}$$ or 
$$_{10}C_7$$ do you know how to compute it?

anonymous · Answer

not sure

anonymous · Answer

answers are 720,120,840,and 5040

anonymous · Answer

how many diffrent ways can you choose 7 people out of 10? is that what its asking.

anonymous · Answer

yes.  answers are 720,120,840,and 5040

anonymous · Answer

Permutations and Combinations

anonymous · Answer

In how many ways can a committee of 3 people be chosen from 20 people?

Since it's a "committee" (no mention of chairman or any other named position), 
the order of choosing the members is not important. 

Hence, you need to use the *combinations* rather than *permutations* formula. 

20 choose 3 = 20! / (17! 3!) = 20 * 19 * 18 / 3! = 1140 
52 choose 3 = 52! / (49! 3!) = 52 * 51 * 50 / 3! = 2210

So try to apply this to your question.

anonymous · Answer

CANT YOU JUST GIVE ME THE ANSWER :(

anonymous · Answer

i want to say its 840 but im not 100% sure so i think you should double check!