SOLUTION: The probability of making the basketball team is 31%, the probability of making the softball team is 39%, and the probability of making one or the other is 50%. What is the probabi

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Question 1158499: The probability of making the basketball team is 31%, the probability of making the softball team is 39%, and the probability of making one or the other is 50%. What is the probability of making both teams?
Answer by VFBundy(438) About Me  (Show Source):
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P(basketball) + P(softball) - P(basketball AND softball) = P(basketball OR softball)

0.31 + 0.39 - P(basketball AND softball) = 0.50

P(basketball AND softball) + 0.50 = 0.31 + 0.39

P(basketball AND softball) + 0.50 = 0.70

P(basketball AND softball) = 0.20