Scores on a standarized exam are normally distributed


For each of these items be sure to sketch the graph and shade the are of interest. Scores on a standarized exam are normally distributed with U=80 and 0=5.

1.) Find the score (X) that corresponds to the 45th percentile and form the boundaries for the middle 20% of the distribution?

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Basic Statistics: Scores on a standarized exam are normally distributed
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