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A baking club wants to form an executive committee.  There are $18$ people in the baking club, including Mark.  In how many ways can the baking club form an executive committee with $2$ people?

 

A baking club wants to form an executive committee.  There are $18$ people in the baking club, including Mark.  In how many ways can the baking club form an executive committee with $2$ people, including Mark?

 

A baking club wants to form an executive committee.  There are $18$ people in the baking club, including Mark.  In how many ways can the baking club form an executive committee with $2$ people, not including Mark?

 

What do you notice about your answers to all three parts?

 Nov 3, 2023
 #1
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Mark has nothing to do with the answer....

ANSWER: "18 choose 2" = (18*17)/(2*1) = 17*9 = 153

 Nov 4, 2023

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