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March 25, 2017

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For a sample with a mean of M=85, a score of X=90 corresponds to a z-score of z=1.00. What is the sample standard deviation?

  • statistics - ,

    Since (Score-Mean)= 90 - 85
    = z*(std. deviation) = 5 ,
    std. deviation = 5/z = 5/1.00 = 5

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