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Paul is undecided as to whether to take a French course or a Chemistry course. He estimates that his probability of receiving an A grade would be ½ in a French course and 2/3 in a chemistry course. If Paul decides to take his decisions based on the flip of a fair coin, what is the probability he gets an A in chemistry?

Paul is undecided as to whether to take a French course or a Chemistry course. He estimates that his probability of receiving an A grade would be ½ in a French course and 2/3 in a chemistry course. If Paul decides to take his decisions based on the flip of a fair coin, what is the probability he gets an A in chemistry? Correct Answer 1/3

C: Paul takes chemistry A: Paul gets an A P(CA) =P(C)P(A|C) =1/2 x 2/3 =1/3.

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