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Suppose that the students at a university are grouped such that: 45% take chemistry; 35% take biology; 25%
take math; 10% take chemistry and math; 5% take chemistry and biology; 3% take biology and math and 1%
take all three subjects. Calculate the probability that a student takes math, given that they take chemistry and
biology.
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sh the exam.
A. 0.01
B. 0.45
C. 0.11
D. 0.20