Answer: Descriptive statistics
Explanation:
Descriptive statistic is defined as the method fro summarizing data and information to partition them into a section of meaningful data.It contains descriptive coefficients that defined the meaningfulness of the data .
Variability and central tendency are the part of descriptive statistics that describe the spread and central point of the data respectively.
Other options are incorrect because overall statistics measure complete components,average statistics take mean of complete statistic data and inferential statistic is based on random data sample.
It's A. Serfs were under a type of bondage, in which they worked on the
land OWNED by the lord. Vassals were given land by the lords in return
for their protective services.
I hope this helps.
The Preamble Part 1, Natural Rights Part 2, List of Grievances part 3, and Resolution of Independence Part 4.