According to the Venn diagram, if P(A) = 0.4 and P(B) = 0.3, what is P(AuB)?A. 0.6B. 0.5C. 0.8D. 0.7

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asked Jul 4, 2023 31.8k views

1 Answer

Imre L · Answer 1 · 2023-07-08T10:03:19+0000

For this type of question, we recall the following:

$P(A\cup B)=P(A)+P(B)-P(A\cap B)$

From the Venn diagram, we have that

$P(A\cap B)=0.10$

Substituting P(A) = 0.4 and P(B)= 0.3 we get:

$P(A\cup B)=0.4+0.3-0.1=0.6$