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GB-18-05-001 · Independent events

The probability that bus A is on time is 45\frac{4}{5}. The probability that bus B is on time is 14\frac{1}{4}. The events are independent. Find the probability that both buses are on time.

Independent Events (AND Rule) Application of related method — Booklet p. 60
Method
Option 1 AND Option 2 ⇒ Multiply probabilities: P(A and B) = P(A) × P(B)
Worked Example (GB-18-05-001)
1)
Multiply the two probabilities.
2)
15\frac{1}{5}
Ans = 15\frac{1}{5}