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A file cabinet manufacturer estimates that 5% of its file cabinets will have drawers that close improperly. Assume a production run of 120 cabinets is completed.

a.What is the mean and standard deviation of this distribution?

b.What is the probability that 7 or more are defective?

c.What is the probability that exactly 7 cabinets are defective?

d.What is the probability that there are more than 8 defective file cabinets?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
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