1. There are 18 mathematics majors and 325 computer sci-
ence majors at a college.
a) In how many ways can two representatives be picked
so that one is a mathematics major and the other is a
computer science major?
b) In how many ways can one representative be picked
who is either a mathematics major or a computer sci-
ence major?
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(A) In how many ways can one representative be picked
who is either a mathematics major or a
computer science major?
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