If P(A)=0.4 and P(B)=0.3 and A and B are mutually exclusive then what is P(A union B)?
यदि P(A)=0.4 और P(B)=0.3 तथा A और B mutually exclusive हैं तो P(A union B) क्या होगा?
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Correct Answer
B. 0.7
ExplanationStep 1: Identify the concept: this is addition rule. Step 2: For mutually exclusive events P(A union B)=0.4+0.3=0.7. Step 3: For mutually exclusive events no overlap needs to be subtracted.
Step 1: concept पहचानें: यह addition rule है। Step 2: Mutually exclusive events के लिए P(A union B)=0.4+0.3=0.7। Step 3: Mutually exclusive में overlap subtract नहीं करना पड़ता।