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March 29, 2017

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Ram earned a score of 940 on a national achievement test. The mean test score was 850 with a standard deviation of 100.what proportion of student had a higher score than Ram?(Assume that test scores are normally distributed)

  • statistics - ,

    Z = (score-mean)/SD

    Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion related to the Z score.

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