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Eligibility. A university requires its biology majors to take a course called BioResearch. The prerequisite for this course is that students must have taken either a Statistics course or a computer course. By the time they are juniors, 52% of the Biology majors have taken Statistics, 23% have had a computer course, and 7% have done both.

a) What percent of the junior Biology majors are ineligible for BioResearch?

b) What's the probability that a junior Biology major who has taken Statistics has also taken a computer course?

c) Are taking these two courses disjoint events? Explain.

d) Are taking these two courses independent events? Explain.

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