Final answer:
Measures of central tendency define central positions in data, while measures of dispersion describe data spread around the mean or median.
Explanation:
Measures of central tendency are values that describe the central positions within a set of data, including mean, mode, and median. On the other hand, measures of dispersion or variability describe how spread out data points are around the mean or median. Key measures of dispersion include range, variance, and standard deviation.
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