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. \( 6.5 \)
• C. \( 0.65 \)
• D. \( 3.5 \)

Hint:

For any event \( A \), the sum of the probability of occurrence and non-occurrence is always: \[ P(A) + P(\neg A) = 1. \]

Answer 1

The Correct Option is C

The probability of the non-occurrence of an event \( A \) is:
\[ P(\neg A) = 1 - P(A). \] Substituting the given value:
\[ P(\neg A) = 1 - 0.35 = 0. \]