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rom a club of 12 people, in how many ways can a group of two members be selected to attend a conference?
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rom a club of 12 people, in how many ways can a group of two members be selected to attend a conference?

User Phil Sheard
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1 Answer

3 votes

Answer:

66

Explanation:


\binom{12}{2}=(12!)/(10!21)=(12 \cdot 11)/(2)=66

User ManojK
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