If P(A) = 0.4 and P(B)= 0.7 and P(A∩

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Target Exam

CUET

Subject

-- Mathematics - Section B1

Chapter

Probability

Question:

If P(A) = 0.4 and P(B)= 0.7 and P(A∩B) = 0.5 then the value of P(AUB) is-

Options:

0.4

0.5

0.6

0.8

Correct Answer:

0.6

Explanation:

We have P(A) = 0.4 and P(B)= 0.7 and P(A∩B) = 0.5

We know that P(A∪B) = P(A) +P(B) -P(A∩B)

= 0.4 +0.7 -0.5

⇒ P(A∪B) = 0.6