Defective Machines


Suppose that the probability that an item produced by a certain machine will be defective is 0.12.

  1.  Find the probability (exactly)  that a sample of 10 items will contain at most 1 defective item.
  2. Use the Poisson to approximate the preceding probability. Compare your two answers.


[Inspired Ross, p. 151,  example 7b ]

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