Mathematics for IGCSE & O level - Probability (Section 8 - No. 27)
If the probability of an event occurring is 0.6, what is the probability of the event *not* occurring?
0.4
0.6
1.0
0
Explanation
The probability of an event not occurring is 1 - the probability of the event occurring. Therefore, 1 - 0.6 = 0.4
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