Suppose P(A)= 0.30.The probability of the complement of A is:
A) 0.30
B) 0.70
C)-0.30
D) None of these choices.

Name: Suppose P(A)= 0.30.The probability of the complement of A is: A) 0.30 B) 0.70 C)-0.30 D) None of these choices.
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Question

Quizplus · Accepted Answer

The complement of A is the probability of everything that is not A. Since the sum of the probabilities of A and its complement is 1, we can find the probability of the complement by subtracting the probability of A from 1:

1 - 0.30 = 0.70

Therefore, the answer is choice B.