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CQE – Certified Quality Engineer

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Showing 7–9 of 10 questions

Question 7

A process is normally distributed with a mean of 200 and a variance of 25. One item is randomly selected, what is the probability of this item having a value greater than 210?

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    0.3446
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    0.0228

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    0.0012

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    0.0375
Question 8

According to Tchebysheff's theorem what % of measurements must lie within 2.5 standard deviations of the mean?

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    3/4

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    8/9

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    0.840

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    0.625
Question 9

A system was designed with 3 capacitors. When the system is first activated all capacitors are operating. The system continues to operate as long as at least 1 capacitor is operating. This is an example of

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    Redundancy.

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    A series system.
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    An active parallel system.

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    A standby parallel system.