lecc001 Flashcards
1
Q
Flat (also called tabular) datasets are organized with
A
columns and rows.
2
Q
The columns are
A
the variables (also called attributes or features)
3
Q
and the rows
A
are observations (also called instances or records).
4
Q
Two main types of variables → ?
A
Numeric and categorical
5
Q
Two types of numeric variables → ?
A
Discrete and continuous
6
Q
Discrete variables → ?
A
Countable values (e.g., number of students)
7
Q
Continuous variables → ?
A
Measurable values (e.g., height, weight)
8
Q
Categorical variables → ?
A
Group classifications
9
Q
Nominal variables → ?
A
Names for groups (e.g., colors, brands)
10
Q
Ordinal variables → ?
A
Ordered values (e.g., rankings, satisfaction levels)
11
Q
Binary variables → ?
A
Two possible values (e.g., “on” and “off”)
