Standard Deviation

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5 Terms

1
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What is standard deviation

  • Common measurements of statistical variability

  • Measures how close the numbers within the data set are in relation to the mean

  • Calculated as the square root of the variance

2
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Low standard deviation

Data points are close to the mean

<p>Data points are close to the mean</p>
3
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High standard deviation

Data points are more spread out and not close to the mean

<p>Data points are more spread out and not close to the mean </p>
4
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Range

  • Largest number of the data set subtracted by the lowest score

  • Maximum score - Minimum score

5
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Variance

  • Statistical variability

  • Measure of how far the numbers of a data set differ from each other and deviate from the statistical mean

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