Variables are the attributes of some object. For example, Height is a variable in Fingers because it is an attribute of the people that were measured. Variables are often represented as columns in a data frame.
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quantitative variables
Quantitative variables are values that represent some quantity.
bivariate distribution
Bivariate distribution is the pattern of variation in the values of two variables.
random assignment
Random assignment is a method of assigning subjects to one experimental condition or another; it helps us rule out confounding variables by ensuring that any variables that affect our outcome variable, whether positively or negatively, will balance ...
randomization
Randomization is a computational technique that breaks whatever relationship exists between two variables; also known as the permutation approach.
permutation approach
The permutation approach is a computational technique that breaks whatever relationship exists between two variables; also known as randomization.