Final answer:
Descriptive Statistics is the subject of this question. It involves measures of center and variation in a data set.
Step-by-step explanation:
The subject that is being described in this question is Descriptive Statistics. Descriptive statistics are used to describe and summarize data sets, including measures of center and variation. Measures of center, such as the mean, median, and mode, provide information about the average or most typical value in a data set. Measures of variation, such as the standard deviation, give an idea of how spread out the data values are from the mean.