The number of flaws on a vhs magnetic tape produced


The number of flaws on a VHS magnetic tape produced continuously at a factory follows a Poisson distribution with an average of 0.01 flaws per meter. A standardsVHS cassette tape contains 250 meters of magnetic tape.

a. What is the probability that there are at least two flaws in a single VHS cassette tape?

b. What is the probability that there are no flaws in a single VHS cassette tape; that is, a tape is flawless?

c. In a random sample of 20 cassettes, what is the probability that at least two of them are flawless?

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Basic Statistics: The number of flaws on a vhs magnetic tape produced
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