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Exam ICBB topic 1 question 280 discussion

Actual exam question from Six Sigma's ICBB
Question #: 280
Topic #: 1
[All ICBB Questions]

Which of the following is used to model lifetimes of certain elements?

  • A. Exponential distribution
  • B. Normal distribution
  • C. Poisson distribution
  • D. Weibull distribution
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Suggested Answer: A 🗳️

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InvisibleBeing
1 year, 7 months ago
Selected Answer: A
The exponential distribution is often concerned with the amount of time until some specific event occurs. For example, the amount of time (beginning now) until an earthquake occurs has an exponential distribution. Other examples include the length, in minutes, of long distance business telephone calls, and the amount of time, in months, a car battery lasts. It can be shown, too, that the value of the change that you have in your pocket or purse approximately follows an exponential distribution.
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