A system contains two components, A and B. The system will function only if both components function. The probability that A functions is 0.98, the probability that B functions is 0.95, and the probability that either A or B functions is 0.99. What is the probability that the system functions?
What will be an ideal response?
P(A ? B)=P(A) + P(B) ? P(A 
B)
=0.98 + 0.95 ? 0.99
=0.94
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