Conditional Probabilitymedium
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A student takes a multiple-choice quiz where each question has 5 options. If the student knows the answer, they are correct with probability . If they don't, they guess and are correct with probability . If the student gets a question correct, and the probability they knew the answer was , what is the probability they knew the answer on a randomly selected question?
A student takes a multiple-choice quiz where each question has 5 options. If the student knows the answer, they are correct with probability . If they don't, they guess and are correct with probability . If the student gets a question correct, and the probability they knew the answer was , what is the probability they knew the answer on a randomly selected question?