Just some vocab before my question,

Question

data – a set of information collected from a survey, experiment, records, or other source

population – a group of people or objects being studied

sample – a small section of a statistical population

statistics – a branch of math that deals with the collection and analysis of data

Answer 1

Now, here's my question:

How can the use of statistics help researchers make inferences about a population based on a sample of data collected?