Maths Probability Tutorial 2

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A) P(A)= 0.8, P(B)= 0.5, P(A B)= .32 , P(A U B)= ?

The probability that it is friday and that a stduent is absent is 0.04. Probability that it is friday is 0.2. What is the probability that student is absent and it is friday?

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A) 0.15 B) 0.98