Compute P(A|B), if P(B) = 0.5 and P (A ∩ B) = 0.32
Given: P(B) = 0.5 and P(A ∩ B) = 0.32
We know that
By definition of conditional probability,
An instructor has a question bank consisting of 300 easy True / False questions, 200 difficult True / False questions, 500 easy multiple choice questions and 400 difficult multiple choice questions. If a question is selected at random from the question bank, what is the probability that it will be an easy question given that it is a multiple choice question?