SOLUTION: On average, one specific type of electronic equipment used in an operating theater lasts 8 years under normal conditions. What's the probability that one particular piece of thi

Question 1035862: On average, one specific type of electronic equipment used in an operating theater lasts 8 years under normal conditions.
What's the probability that one particular piece of this equipment lasts more than 10 years?

Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
If you are talking about STANDARD normal conditions, then 10 is 2 standard deviations from the average of 8, hence the probability that one particular piece of this equipment lasts more than 10 years is 1 - 0.9772 = 0.0228, or 2.28%.
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