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A company that produces fine crystal knows from experience that 19% of its goblets have cosmetic...

A company that produces fine crystal knows from experience that 19% of its goblets have cosmetic flaws and must be classified as "seconds." (Round your answers to four decimal places.)

(a)

Among eight randomly selected goblets, how likely is it that only one is a second?

(b)

Among eight randomly selected goblets, what is the probability that at least two are seconds?

(c)

If goblets are examined one by one, what is the probability that at most five must be selected to find four that are not seconds?

Math   Statistics-And-Probability   
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