Reasoning

Probability of Independent Events

Find probability of two independent events occurring together.

P(A and B) = P(A) × P(B)

Formula Explanation

Independent events do not affect each other’s probability.

Variables Explained

P(A), P(B) = individual probabilities.

Solved Example

P(A)=1/2, P(B)=1/3. P(both)?
1/2 × 1/3 = 1/6.

Exam Tip

Check independence before multiplying.