Question
The students in Mrs. Mandel’s class need to choose two class
representatives from six nominated students. How many different
combinations of class representatives are possible?
representatives from six nominated students. How many different
combinations of class representatives are possible?
Answers
Steve
6C2 = 6*5/2 = 15
Anonymous
Combination because choosing Joe and Sam is the same as choosing Sam and Joe.
Some might thing 6 x 5 = 30, but that is wrong because order doesn't matter as stated above.
6!/4!2!
Some might thing 6 x 5 = 30, but that is wrong because order doesn't matter as stated above.
6!/4!2!
Bub
that answers above are correct, Amen!!
Bub
my response would say...2-2-2 which then you use the mathematical term (!) and leads to the answer 15!!
Manny
hey Bub! your answer is wrong
Bub
no its not
Manny
yes it is !!! don't argue with a genius
Bub
you're not a genius, what is you gpa?
Manny
4.5
Bub
no its not
you're lying
you're lying