Topic B: Bivariate numerical data

Topic B includes lessons 6-9 and covers scatter plots, patterns in scatter plots, informally fitting a line, and determining the equation of a line fit to data.

Constructing a scatter plot

Constructing scatter plots

Making appropriate scatter plots

Example of direction in scatterplots

Scatter plot: smokers

Positive and negative linear associations from scatter plots

Describing trends in scatter plots

Estimating the line of best fit exercise

Eyeballing the line of best fit

Line of best fit: smoking in 1945

Estimating slope of line of best fit

Estimating equations of lines of best fit, and using them to make predictions

Interpreting a trend line

Interpreting slope and y-intercept for linear models