Social Statistics for a Diverse Society Chapter 5 Terms – Flashcards
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Standard Deviation
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The most important and widely used measure of dispersion Should be used with interval-ratio variables but is often used with ordinal-level variables Meets criteria for good measure of dispersion: 1. Use all scores in the distribution 2. Describe the average or typical deviation of the scores 3. Increase in value as the distribution of scores becomes more diverse The Standard deviation and variance are based on the distance between each score and the mean
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Variance
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Measure how far each number in the set is away from the mean
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