AP Statisticsmediummcq1 pt
P(A) = 0.5, P(B) = 0.4, and P(A and B) = 0.2. Then P(A or B) is
A.0.7
B.0.9
C.0.2
D.0.1
Explanation
Core Concept
0.5 + 0.4 - 0.2 equals 0.7.
Correct Answer
A0.7
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