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Measures of Dispersion
Applied Mathematics · Chapter 16 · Unit 5: Statistical Methods and Probability
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Topics 6
- Mode of grouped and ungrouped data; range
- Quartiles, interquartile range, quartile deviation and its coefficient
- Mean deviation about mean and median; coefficient of mean deviation
- Variance and standard deviation by direct, short-cut and step-deviation methods; coefficient of variation
- Combined mean and standard deviation of two groups
- Comparing measures of dispersion and choosing an appropriate one