Three, they are: Constant,dependant, & controlled.
Alternatively, you can say there are 4: nominal, ordinal, interval, and ratio.
There are three types of variables tested: manipulated variables, controlled variables, and experimental variables.
As many types as variables are used to calculate the elasticity. Elasticity is simply a relationship between rates of change of variables in equations.
Qualitative and quanitative are two types of variables.
The two types of variables are the CONSTANT and CONTROL.
There are many ways of categorising variables. One classification, used in statistics, is Nominal, Ordinal and Interval.
nominal and ordinal is wrong; those are the two types of qualitative variables. Ratio and interval are the two types of quantitative variables.
Independent and dependent are types of variables. These variables are used mostly in science and math. When using independent variables you can control them dependent variables you cannot.
controlled,manipulated,responding variables
There are many types of race cars and just as many different types of race car tracks. Too many variables to answer that question.
variables
Variables
there r 3 types of variable in 'C' Integer Float Character