If N=100, (A)=50, (B)=40, and (αβ)=30, then (AB) is: MCQ with Answer and Explanation

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If N=100, (A)=50, (B)=40, and (αβ)=30, then (AB) is:

A. 10

B. 30

C. 20

D. 40

Answer: Option C

Solution (By JKExamLibrary)

(αβ)= N - (A) - (B) + (AB) → 30 = 100-50-40 + (AB) → (AB)=20.

This question belongs to: Accountancy and Statistics Statistics

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If P(A)=0.4, P(B)=0.5, and A and B are independent, then P(A∪B) is:

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