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Suppose a lot of 10,000 items has 200 defective items and that a random sample of...

Suppose a lot of 10,000 items has 200 defective items and that a random sample of 30 is drawn from the lot. What is the Poisson approximation (to four decimal places) of the probability of getting exactly 1 defective in the sample?

(The answer is 0.5488, but I want to know how to get to this answer)

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