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Introduction to Statistics and Quantitative Research Methods

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Normal Distribution<br />

•<br />

•<br />

In a normal distribution,<br />

about 68% of the scores<br />

are within one st<strong>and</strong>ard<br />

deviation of the mean.<br />

95% of the scores are<br />

within two st<strong>and</strong>ard<br />

deviations of the mean.<br />

.025 .025

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