s010 
Introduction

s020 
Scatter plot

s040 
The straight line

s080 
Correlation coefficient

s090 
The magnitude and direction of a linear relationship

s110 
Correlation and causation

s120 
Informal regression

s130 
Formal regression

s140 
The linear regression model

s170 
The least squares method

s180 
The least squares regression line

s182 
SLR in R

s185 
Prediction

s186 
Interpolation

s187 
Extrapolation

s190 
On expected values and variances

s200 
Estimating dispersion

s210 
Correlation and explained variation

s230 
Interpreting package output
