data mining

is the most raw form of data, in the sense that it has not been transformed, cleansed, or changed

most expensive source of data because they require direct interaction with customers.

Types of data set

refers to the number of features or variables in a dataset

 refers to the presence of missing or empty values in a dataset.

Patterns depend on the scale; refers to the level of detail or granularity of the data

refers to the way data is spread out or dispersed across different values or categories within a dataset

a data field, representing a characteristic or feature of a data object.

 

both outcomes equally important

both outcomes not equally important