# Statistics

Suppose a college entrance exam has a mean of 1200 and a standard deviation of 100. An Ivy league college will only take applicants in the 90% percentile or higher. what is the lowest score they would need on the entrance exam?

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1. Z = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.90) and its Z score. Insert data into equation and solve for score.

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posted by PsyDAG

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