Question

4. In a high school graduating class of 100 students, 54 studied mathematics, 69 studied

history, and 35 studied both mathematics and history. If one of these students is selected at

random, find the probability that

(a) the student took mathematics or history;

(b) the student did not take either of these subjects;

(c) the student took history but not mathematics.

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Answer 1

Answer:

(a)35

_______

100

(c) 69

______

100