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KIN 401: Lecture 1, Part 5
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Lesson 1, Part 5: Making Numbers Meaningful Variation
Measures of Variation (1)
Measures of Variation (2)
The Range
When to Use the Range
Variance
What Does the Variance Formula Mean? (1)
What Does the Variance Formula Mean? (2)
What Does the Variance Formula Mean? (3)
Standard Deviation
Standard Deviation vs. Variance
Variance/SD of a Sample
Why N - 1?
SD of a Sample
Computational Formula Example
Variance vs. Standard Deviation
Interpretation of Standard Deviation
Percent of Values Within 1 Standard Deviation
Percent of Values Within 2 Standard Deviation
Percent of Values Within 3 Standard Deviation
Interquartile Range
Calculating the Interquartile Range for High Temperatures
Outliers
Outliers and Interquartile Range
Comparison of Range, Standard Deviation, and Interquartile Range
Coefficient of Variation (1)
Coefficient of Variation (2)
Coefficient of Variation (3)
Coefficient of Variation (4)
Coefficient of Variation (5)
Coefficient of Variation (6)
Relationship Between Measures and Shape of Distributions
Text and Images from Slide
Relationship Between Measures and Shape of Distributions
Mean and SD for normal distributions
Median and IQR for skewed distributions
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