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15 May, 19:40

A CD drive produced by a certain company has a 1% chance of encountering disc-read errors. If it is tested for 200 read operations, what is your best estimate about how many times it will fail?

A. 0

B. 2

C. 3

D. 5

E. 10

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Answers (1)
  1. 15 May, 20:26
    0
    The number of times that the CD will fail is the product of the numbers it was tested and the percentage that it would fail. This is,

    (200 times) x (0.01) = 2

    It is estimated that the CD will fail twice. The answer is letter B.
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