no it is a measure of dispersion.
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Measures of central tendency are averages. Range , the difference between the maximum and the minimum, is a measure of dispersion or variation.
The measure of variability tells you how close to the central value the data values lie: that is whether the cluster is tightly packed around the central value of spread out over a large range of values.
That depends on the data.
Median
Common measures of central tendency are the mean, median, mode. Common measures of dispersion are range, interquartile range, variance, standard deviation.