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A study of two fire sprinklers finds that the probability of one
sprinkler going off during a fire is 90%, and the probability of
the other one going off is 97%. Assuming the sprinklers work
independently, what is the probability that at least one sprinkler
goes off during a fire?
| a) 87.3% | b) 90% | c) 97% | d) 99.7% | e) 100% |
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