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OpenStudy (anonymous):
If P(A or B) = 0.8, P(A) = 0.1 and P(B) = 0.9, determine P(A and B). 0.90 0.20 0.80 0.08
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jimthompson5910 (jim_thompson5910):
Hint: P(A and B) = P(A) + P(B) - P(A or B)
OpenStudy (anonymous):
would it be .20
jimthompson5910 (jim_thompson5910):
yes it is
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