2.2 Why visualize? Anscombes’s quartet (1)

  • Table 2.1 displays Anscombe’s quartet (Anscombe 1973), a dataset (or 4 little datasets) often used to illustrate the usefulness of visualization
    Table 2.1: Anscombe’s quartet data
    x1 y1 x2 y2 x3 y3 x4 y4
    10 8.04 10 9.14 10 7.46 8 6.58
    8 6.95 8 8.14 8 6.77 8 5.76
    13 7.58 13 8.74 13 12.74 8 7.71
    9 8.81 9 8.77 9 7.11 8 8.84
    11 8.33 11 9.26 11 7.81 8 8.47
    14 9.96 14 8.10 14 8.84 8 7.04
    6 7.24 6 6.13 6 6.08 8 5.25
    4 4.26 4 3.10 4 5.39 19 12.50
    12 10.84 12 9.13 12 8.15 8 5.56
    7 4.82 7 7.26 7 6.42 8 7.91
    5 5.68 5 4.74 5 5.73 8 6.89

References

Anscombe, F J. 1973. “Graphs in Statistical Analysis.” Am. Stat. 27 (1): 17–21.