Class 12 Probability · Conceptual Answer1 Marksbinomial_distribution
Class 12 Maths · Probability · Conceptual Answer #94
Draw four cards independently with replacement from a 52-card deck. Find P(at least three aces).
✅ Step-by-Step Solution
Final Answer: 49/28561
- X~Binomial(4,1/13). P(X≥3)=4(1/13)³(12/13)+(1/13)⁴=49/13⁴=49/28561.
- 49/28561
📋 CBSE Stepwise Marking Scheme
- [0.5 marks] X~Binomial(4,1/13). P(X≥3)=4(1/13)³(12/13)+(1/13)⁴=49/13⁴=49/28561.
- [0.5 marks] 49/28561
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