Mathematics, 18.01.2020 04:31 PONBallfordM89
Consider three classes, each consisting of n students. from this group of 3n students, a group of 3 students is to be chosen.
a. how many choices are possible?
b. how many choices are there in which all 3 students are in the same class?
c. how many choices are there in which 2 of the 3 students are in the same class and the other student is in a different class.
d. how many choices are there in which all 3 students are in different classes?
Answers: 2
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Consider three classes, each consisting of n students. from this group of 3n students, a group of 3...
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