SOLUTION: On a 21 problem test how many ways can a person get 7 right and 14 wrong?
Algebra.Com
Question 1088574: On a 21 problem test how many ways can a person get 7 right and 14 wrong?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The order of answering the questions doesn't matter, so
this is a problem in combinations
C( 14,7 ) =
C( 14.7 ) =
C( 14,7 ) =
C( 14,7 ) =
C( 14,7 ) =
C( 14.7 ) =
There are 17,160 ways
get a 2nd opinion if needed
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