NCERT Miscellaneous Exercise Q9 - Probability
Question: An electronic assembly has subsystems A and B with P(A fails)=0.2, P(B fails alone)=0.15, P(A and B fail)=0.15. Find (i) P(A fails | B has failed) (ii) P(A fails alone).
Answer: (i) 0.5; (ii) 0.05.
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