SOLUTION: How many ways can a committe of 7 people be selected from a group of 15 people

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Question 106759: How many ways can a committe of 7 people be selected from a group of 15 people
Answer by Earlsdon(6294) About Me  (Show Source):
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How many ways can a committee of 7 people be chosen from a group of 15 people.
This is actually a combination problem, not a permutation problem. Why, because the order of the selected people is not important.
Combination of 15 things taken 7 at a time is given by:
C%2815%2C7%29+=+15%21%2F7%21%2815-7%29%21+=+15%21%2F7%21%288%21%29 = 6,435 ways.