Parameter (based on pop. data) vs. Statistic(based on sample data)
Categorical (in order?arithmetic)vs. Quantitative Variables(numerical)
Causation(Cause-Effect) vs. Association Relationship
Types of Studies: Observational(observe or survey) vs. Exper
Math 120- 02
a) A pair of variables that have a linear relationship would be height and weight.
b) A pair of variables that have a nonlinear relationship would be pressure and volume.
As shown in the scatterplot,