SOLUTION: In how many ways can a group of four or more be form from ten people
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Question 380284: In how many ways can a group of four or more be form from ten people
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
We can choose 4, 5, 6, ..., 10 people for a group. Thus the number of ways is
10C4 + 10C5 + ... + 10C10
= (2^10) - 10C3 - 10C2 - 10C1 - 10C0
= 1024 - 120 - 45 - 10 - 1
= 848
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