Question

P(A) = 0.33, P(A and B) = 0.25, find P(B

Answer 1

≈0.76

Explanation:

P(A) = 0.33

P(A and B) = 0.25

P(B) = ?

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Probability of two events happening is the product of individual probabilities

• P(A and B) = P(A)×P(B)

Then to find the probability of one of the events:

• P(B) = P(A and B) / P(A)
• P(B) = 0.25 / 0.33 ≈ 0.76