What are inferential statistics

A)  data used to organize and summarize data 
B)  numerical indexes of the degree of relationship between two variables 
C)  calculations used to interpret data and draw conclusions 
D)  indicators of the variability of a population under study

Inferential statistics involve using calculations and statistical methods to interpret data and draw conclusions about a larger population based on a sample of data. This contrasts with descriptive statistics (choice A), which are used to organize and summarize data. While numerical indexes (choice B) and indicators of variability (choice D) may be used in inferential statistics, they do not fully capture the nature of this statistical approach.