Statistics is a branch of mathematics involved with collecting a large number of observations in numerical form (called data) in order to describe or make inferences about a population.
Descriptive statistics can be things like numbers or graphs.
Numbers can display some specific charcteristics of a set of data. Examples of these include:
Graphs can visually display more general charcteristics of a set of data. Examples of these include:
Inferential statistics is concerned with making predictions or statements about a population based on the data of a sample.