Descriptive statistics
What to describe?
Measures of Variability
Range
What is the range?
Interquartile range
What is the Interquartile Range?
Variance
Standard deviation
What is the variance or standard deviation?
Variance or standard deviation
Coefficient of Variation
Coefficient of variation (MPH)
Coefficient of variation (KPH)
PPT Slide
Choosing Appropriate Measure of Variability
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