Concept:A measure of dispersion describes how widely the values in a data set are spread out.
Explanation:Dispersion measures the variability or spread of data.
The range is the difference between the largest and smallest values:
Range=Maximum−Minimum.
It directly shows how far apart the data points lie.
A larger range indicates greater spread, while a smaller range indicates values are closer together.
Percentiles and quartiles are measures of position that divide data into parts.
The median is a measure of central tendency, not dispersion.
Therefore, among the given options, only the range measures dispersion.
Answer:A. range