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CQE · Question #109

A lot is known to be 1.2% defective. Five units are randomly selected from the lot, and the lot is accepted if 1 or fewer defects are found. What is the probability of the lot being rejected?

The correct answer is C. 0.00173. See the full explanation below for the reasoning.

Statistical Tools and Techniques

Question

A lot is known to be 1.2% defective. Five units are randomly selected from the lot, and the lot is accepted if 1 or fewer defects are found. What is the probability of the lot being rejected?

Options

  • A0.9985
  • B0.01
  • C0.00173
  • D0.00223

How the community answered

(35 responses)
  • A
    11% (4)
  • B
    6% (2)
  • C
    80% (28)
  • D
    3% (1)

Topics

#binomial distribution#acceptance sampling#probability calculation#lot rejection

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