Drawing statistical conclusions involves usage of enumerative and analytical studies, which are:
Enumerative or descriptive studies describes data using math and graphs and focus on the current situation like a tailor taking a measurement of length, is obtaining quantifiable information which is an enumerative approach. Enumerative data is data that can be counted.
A statistic is a quantity derived from a sample of data for forming an opinion of a specified parameter about the target population.
Analytical (Inferential) Studies – The objective of statistical inference is to draw conclusions about population characteristics based on the information contained in a sample. It uses sample data to predict or estimate what a population will do in the future like a doctor taking a measurement like blood pressure or heart beat to obtain a causal explanation for some observed phenomenon which is an analytic approach.