Scatterplots compare two bivariate variables. Our independent variable goes on the x axis and the dependent variable goes on the y-axis (think back to algebra 1, here). While we can't CUSS for a scatterplot in the exact same way, we do describe three aspects of the data:
1) Direction - do the observations appear to be going in a positive or negative direction?
2) Strength - are the observations close together? Far apart? Not correlated at all?
3) Linearity - do the data appear to be in the shape of a straight line?
No comments:
Post a Comment