Let S be the event that a randomly selected college student has taken a statistics course, and
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Let S be the event that a randomly selected college student has taken a statistics course, and let C be the event that the same student has taken a chemistry course. Suppose P(S) = 0.4, P(C) = 0.3, and P( S and C) = 0.2.
a. Find the probability that a student has taken statistics or chemistry.
b. Find the probability that a student has taken statistics given that the student has taken chemistry.
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