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Which of the following is a measure of variability?
A) Percentiles
B) Quartiles
C) Interquartile range
D) Midrange
Measure of Variability
Statistical indices that describe the spread or dispersion within a set of numerical data, including range, variance, and standard deviation.
Percentiles
Values below which a certain percentage of data in a data set fall.
Quartiles
The 25th, 50th, and 75th percentiles, referred to as the first quartile, the second quartile (median), and third quartile, respectively. The quartiles can be used to divide a data set into four parts, with each part containing approximately 25% of the data.
- Distinguish between and understand the uses of different measures of variability and their significance in data analysis.
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Learning Objectives
- Distinguish between and understand the uses of different measures of variability and their significance in data analysis.
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