There are three main kinds:
Nominal: such as colour of eyes, or gender, or species of animal. With nominal variables there is no intrinsic sense in which one category can be said to be "more" than another.
Ordinal: Such as Small/Medium/Large, or
Strongly Disagree/Disagree/Indifferent/Agree/Srongly Agree. The categories can be ordered but the differences between pairs is not comparable. For example, it is not really possible to say that the difference betwen Strongly disagree and disagree is the same as (or double or half or whatever) the difference between indifferent and agree.
Interval: These are variables where the distance between one pair of values (their interval) can be related to the distance between another pair. Such variables can be subdivided into discrete and continuous.
Another way of classifying variables is independent and dependent.
The dependent variable is a random variable but the independent variable can be random or non-random.
what are the classification of variables
independent variable,depedent variable and control variable are the 3 kinds of variables.
statistics
It measures associations between variables.
In statistics, bivariate data refers to data that comes with two variables.
There are many ways of categorising variables. One classification, used in statistics, is Nominal, Ordinal and Interval.
Sample Statistics
what are the classification of variables
Descriptive and Inferential Statistics
independent variable,depedent variable and control variable are the 3 kinds of variables.
statistics
Linear Analysis is a technique used in statistics to determine the constant relationship between two variables.
It measures associations between variables.
Sample statistics
There are several possibilities. They can be called arguments and there are two kinds, variables and constants. Variables can have different values and constants are always the same.
Explanatory and Response variables are just fancy words for independent and dependent variables. Explanatory is the independent variable and response is the dependent variable.
I seriously doubt they keep those kinds of statistics.