CBSE Class 12 Mathematics 2026 Supplementary Paper 65/7/3 · Q181 Marksconditional_probability
CBSE Class 12 Mathematics 2026 Supplementary Paper 65/7/3 · Question 18 (Probability)
If P(A)=0.3, P(B)=0.7 and P(B | A)=0.5, find P(A∪B).
✅ Step-by-Step Solution
Final Answer: 0.85
- The intersection is 0.3·0.5=0.15. Hence P(A∪B)=0.3+0.7−0.15=0.85.
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