P(A)=3/5, P(B)=7/10, P(A∩B)=1/4. What is P(A∪B)?
P(A)=3/5, P(B)=7/10, P(A∩B)=1/4 है। P(A∪B) क्या है?
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Correct Answer
D. 21 / 20
ExplanationStep 1: Identify the concept: addition theorem. Step 2: P(A∪B)=P(A)+P(B)-P(A∩B). Calculation gives 21/20. Step 3: Exam tip: For a union, subtract the common part once.
Step 1: अवधारणा addition theorem है। Step 2: P(A∪B)=P(A)+P(B)-P(A∩B)। Calculation से 21/20। Step 3: याद रखें: Union में common part एक बार subtract करें।