Four Regression Datasets
[1] X-values for datasets 1, 2, and 3
[2] Y-values for dataset 1
[3] Y-values for dataset 2
[4] Y-values for dataset 3
[5] X-values for dataset 4
[6] Y-values for dataset 4
Source: F. J. Anscombe (1973), "Graphs in statistical analysis,"
American Statistician, 27: 17-21.