Class 12 Probability · Mcq Single Correct1 Marksindependent_trials
Class 12 Maths · Probability · Mcq Single Correct #9
A,B,C each fire once independently at a target, with hit probabilities 0.4,0.3,0.2. Find P(exactly two hits).
✅ Step-by-Step Solution
Final Answer: Option (B): 0.188
- Add the disjoint outcomes HHM, HMH, MHH: 0.4·0.3·0.8+0.4·0.7·0.2+0.6·0.3·0.2=0.188.
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