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Statement of a problem № m1112

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The number of flaws in bolts of cloth in textile manufacturing is assumed to be Poisson distributed with a mean flaw per square meter. (c) What is the probability that there are no flaws in 20 square meters of cloth? (d) What is the probability that there are at least two flaws in 10 square meters of cloth?

Solution:
The number of flaws in bolts of cloth in textile manufacturing is assumed to be

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