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A committee is to be made up from a group of eight candidates. The committee must consist of at least two people. How many ways can the committee be chosen?

 Jun 30, 2021
 #1
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We  just  need  to sum the 8th  row entries of Pascal's  triangle  starting with  the  3rd element

 

This  is

 

28  +  56  +  70  +  56  + 28  +  8  +  1  =

 

247  different  committees

 

 

cool cool cool

 Jun 30, 2021

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