The probability of an event and the probability of its complement always sum to:
A) -1
B) 0
C) 1
D) any value between 0 and 1
E) 0.5

Name: The probability of an event and the probability of its complement always sum to: A) -1 B) 0 C) 1 D) any value between 0 and 1 E) 0.5
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Question

Quizplus · Accepted Answer

The probability of an event and its complement cover all possible outcomes, so their sum must be equal to the probability that something will happen (100% or 1).

The Probability of an Event and the Probability of Its