Data set obtained by a population of statistical units and a set of variables

A Data set is obtained through the observation of variables or attributes for a population statistical.

Definitions:

Statistical unit: object of data collection for which the information is collected.

Population Statistical: object of survey, is a set of statistical units from which information is collected.

Attribute (or variable): is the property or parameter of the statistical unit under investigation that we want to measure or process.

Observation: is the real value of something of interest you’re measuring or counting during a study for that attribute or variable.

DataSet: is a collection of data or a list of values for each of the variables in study.
In the case of tabular data, a data set corresponds to one or more database tables, where

• every column of a table represents a particular variable, the values of the characters observed on the different statistical units,
• each row corresponds to a given record of the data set in question, shows the alphanumeric information relating to the single statistical unit,
• each cell contains the value of a single variable detected on a given statistical unit. Each value is known as a datum.