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enot [183]
3 years ago
6

Assume that 28 take mathematics, 28 take psychology, and 13 take mathematics and psychology. How many students take exactly one

of these two courses
Mathematics
1 answer:
Arturiano [62]3 years ago
7 0
28-M
28-P
13-M&P

one of two courses: 28+28=56
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