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March 27, 2017

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Scores on the verbal section of the SAT have a mean of 500 and a standard deviation of 100. If someone scored at the 90th percentile, what is their SAT score?

  • Statisitcs - ,

    Can someone show me how to find this equation to this problem?

    Scores on the verbal section of the SAT have a mean of 500 and a standard deviation of 100. If someone scored at the 90th percentile, what is their SAT score?

  • Statistics - ,

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

    Z = (score-mean)/SD

    Insert the values and solve for the score.

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