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Statistics

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An important measure of the performance of a locomotive is its "adhesion," which is the locomotive's pulling force as a multiple of its weight. The adhesion of one 4400-horsepower diesel locomotive model varies in actual use according to a Normal distribution with mean μ = 0.39 and standard deviation σ = 0.036


What proportion of adhesions (± 0.001) measured in use are higher than 0.32?

What proportion of adhesions (± 0.001) are between 0.32 and 0.45?

  • Statistics -

    Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.

  • Statistics -

    I don't know, I need help too

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