Determine the Appropriate Probability Rule to Use
-If P(A) = 0.5, P(B) = 0.5, and P( A or B) = 0.6, find P(A and B).
A) 0.4
B) 0.3
C) 0.6
D) 1

Name: Determine the Appropriate Probability Rule to Use -If P(A) = 0.5, P(B) = 0.5, and P( A or B) = 0.6, find P(A and B). A) 0.4 B) 0.3 C) 0.6 D) 1
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Question

Quizplus · Accepted Answer

The correct rule to use is the Addition Rule for probabilities, which states P(A or B) = P(A) + P(B) - P(A and B). Plugging in the given values, 0.6 = 0.5 + 0.5 - P(A and B), solving for P(A and B) gives 0.4.