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Questions and Answers
Which term is commonly used to describe the spread of values in a frequency distribution?
Which term is commonly used to describe the spread of values in a frequency distribution?
- Dispersion (correct)
- Uniformity
- Central tendency
- Variability
Which measure of variability is a numerical value used to indicate how widely individuals in a group vary?
Which measure of variability is a numerical value used to indicate how widely individuals in a group vary?
- Variance (correct)
- Central tendency
- Mean deviation
- Standard deviation
What does a large dispersion indicate?
What does a large dispersion indicate?
- Mean deviation
- High uniformity
- Low uniformity (correct)
- Central tendency
What does small dispersion indicate?
What does small dispersion indicate?
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Which measure of variability evaluates the degree of variation among the values in a series?
Which measure of variability evaluates the degree of variation among the values in a series?
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Study Notes
Measures of Variability
- The term commonly used to describe the spread of values in a frequency distribution is dispersion.
- A measure of variability is a numerical value used to indicate how widely individuals in a group vary, such as range, interquartile range, or variance.
- A large dispersion indicates that the values in the dataset are widely spread out, implying that the data points are more diverse and less concentrated around the average value.
- A small dispersion indicates that the values in the dataset are closely packed, implying that the data points are more concentrated around the average value.
- Measures of variability, such as range, interquartile range, variance, and standard deviation, evaluate the degree of variation among the values in a series.
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