Types of Statistical Data: Numerical, Categorical, and Ordinal.

Numerical: ( quantitative )

it has the meaning as a measurement.

Numerical data can be further broken into two types: discrete and continuous.

1 - Discrete data represent items that can be counted.

2 - Continuous data represent measurements; their possible values cannot be counted and can only be described using intervals on the real number line.

Categorical:

Represent characteristics. 

Categorical data can take on numerical values (such as “1” indicating male and “2” indicating female), but those numbers don’t have mathematical meaning. You couldn’t add them together.

Ordinal:

Ordinal data mixes numerical and categorical data. The data fall into categories, but the numbers placed on the categories have meaning.