Pick one of these and explain if and why you would use Permutations or Combinati

Question

Pick one of these and explain if and why you would use Permutations or Combinations to solve. Also post the answer.

1) The number of ways a four member committee can be chosen from 10 people.

2) The number of ways 2 captains can be chosen from 28 players on a baseball team

3) The number of 4 letter passwords that can be created when no letter can be repeated.

4) The number of ways you can arrange 7 dvd's side-by-side on a shelf.

5) Eight skiers are coming down the hill. How many ways can these 8 skiers com in first, second and third place?

Explanation / Answer

1) 10c4 = 210 2) 28c2 = 3) 26c3 = 4) 7factorial = 5040 5) 8c3*3

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