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(a) (10 pts) In how many ways can a committee of 3 people be selected from 8 people? (b) (10 pts) In how many ways can a comm

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Answer #1

a)

Since order is not important,

Committee of 3 people can be selected from 8 people by 8C3 ways.

8C3 = 8! / [ (8 - 3)! * 3! ]

= 56

b)

Since order is important,

Committee of 3 people can be selected from 8 people by 8P3 ways.

8P3 = 8! / (8 - 3)!

= 336

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