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Performance measure of a locomotive

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Reference no: EM131397423

A locomotive's "adhesion" is the locomotive's pulling force as a multiple of its weight. This is an important performance measure of a locomotive. A diesel locomotive model has adhesion that varies in actual use according to a Normal distribution with mean of 0.37 and standard deviation of 0.04.

The percent of adhesions measured in use that are higher than 0.40 is closest to?

A Normal density curve has which of the following properties?

  • It is symmetric.
  • It has a peak centered above its mean.
  • The spread of the curve is proportional to the standard deviation.
  • All of the above

 

Reference no: EM131397423

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