since there are 20 math majors in 140 students, there is a 120/140 = 6/7 chance that a calculus student is not a math major.
The men/women info is irrelevant.
65 men 75 women are enfolled in calculus. There are 30 business majors, 40 biology majors, 50 computer science majors, and 20 mathematics majors. No person has a double. If a single calculus student is chosen, find the probability that that the student is not a mathematics major
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1 answer