Question

If the probability of occurrence of an event \( A \) is 0.35, then the probability of non-occurrence of \( A \) is:

• A. 0.53
• B. 0.65
• C. 0.5
• D. 0.35

Hint:

The probability of non-occurrence is \( 1 - \text{Probability of occurrence} \).

Answer 1

The Correct Option is B

The probability of non-occurrence of an event is given by: \[ \text{P(non-occurrence of } A) = 1 - \text{P(occurrence of } A). \] Substitute \( P(A) = 0.35 \): \[ 1 - 0.35 = 0.65. \] Thus, the probability of non-occurrence is \( \boxed{0.65} \).