Measures of Spread (Range and IQR)
Calculating and interpreting range and interquartile range for grouped and ungrouped data.
About This Topic
Calculating and interpreting range and interquartile range for grouped and ungrouped data.
Key Questions
- Explain why the interquartile range is often a better measure of spread than the total range.
- Analyze how outliers affect the range and interquartile range.
- Compare the strengths and weaknesses of range and interquartile range as measures of spread.
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