1.

For a company, which uses Poisson distributions to describe all the defects in its product, which has the parameter =4, what will be the probability of finding the selected product from a sample that will have 2 or less than 2 defects?

A. 0.2381
B. 0.2561
C. 0.2104
D. 0.3310
Answer» B. 0.2561


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