Concept explainers
In Exercises 1–22, use Bayes’ theorem to calculate the probabilities.
Student Performance The enrollment in a certain course is 10% first-year students, 30% sophomores, 40% juniors, and 20% seniors. Experience has shown that the likelihood of receiving an A in the course is .2 for first-year students, .4 for sophomores, .3 for juniors, and .1 for seniors. Find the probability that a student who receives an A is a sophomore.
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Finite Mathematics & Its Applications (12th Edition)
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