The number of failures of a testing instrument from contamination particles on the
Chapter 3, Problem 3-140(choose chapter or problem)
The number of failures of a testing instrument from contamination particles on the product is a Poisson random variable with a mean of 0.02 failure per hour. (a) What is the probability that the instrument does not fail in an eight-hour shift? (b) What is the probability of at least one failure in a 24-hour day?
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