CBSE Class 12 Mathematics 2026 Main Paper 65/3/1 · Q181 Marksindependent_events
CBSE Class 12 Mathematics 2026 Main Paper 65/3/1 · Question 18 (Probability)
Independent events E and F satisfy P(E)=3/10 and P(E∪F)=1/2. Find P(E | F)−P(F | E).
✅ Step-by-Step Solution
Final Answer: 1/70
- If p=P(F), the union formula gives 1/2=3/10+p−3p/10, hence p=2/7. By independence the difference is 3/10−2/7=1/70.
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