PRC-2 · Chapter 10 · Question 18 of 60
If the probability of a specific event occurring (P) is 0.25, what is the mathematical probability of that event NOT occurring?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: C) 0.75
Explanation
The sum of the probabilities of all possible outcomes in a sample space must equal 1. Therefore, the probability of an event NOT occurring is 1 - P(Event), which is 1 - 0.25 = 0.75.
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