stat module 2=3.2,Introduction to Bivariate Data and Scatterplots

bivariate data

2 variables

response

A _____________ variable measures or records an outcome of a study. (Also: y, dependent variable, predicted variable)

explanatory

An ______________ variable explains changes in the response variable. (Also: x, independent variable, predictor variable)

association

We can say two variables have an are _____________ if knowing the value of one of the variables tells you something about the values of the other variable

shape, trend, strength

Interpreting Scatterplots

We describe the relationship between the two variables by examining the ______ (or form), _______ (or direction), and ___________ of the association.