Given P(A) = 0.40, P(B) = 0.50, P(A and B) = 0.15. Find P(A or B).
A) 0.90
B) 1.05
C) 0.75
D) 0.65
E) 0.60

Name: Given P(A) = 0.40, P(B) = 0.50, P(A and B) = 0.15. Find P(A or B). A) 0.90 B) 1.05 C) 0.75 D) 0.65 E) 0.60
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Question

Quizplus · Accepted Answer

We can use the formula:
P(A or B) = P(A) + P(B) - P(A and B)
Substituting the given values, we get:
P(A or B) = 0.40 + 0.50 - 0.15
P(A or B) = 0.75
Therefore, the answer is C – 0.75.