Chapter 17: Data on tensile strength of 60 aluminum specimen.

Col 1: Tensile strength in 1,000 pounds per square inch
Col 2: Hardness in Rockwell "E"
Col 3: Density in grams per square centimeter. 

29.314        53.0       2.666
34.860        70.2       2.708
36.818        94.3       2.865
30.120        55.3       2.627
34.020        78.5       2.581
30.824        63.5       2.633
35.396        71.4       2.671
31.260        53.4       2.650
32.184        82.5       2.717
33.424        67.3       2.614
37.694        69.5       2.524
34.876        73.0       2.741
24.660        55.7       2.619
34.760        85.8       2.755
38.020        95.4       2.846
25.680        51.1       2.575
25.810        74.4       2.561
26.460        54.1       2.593
29.070        77.8       2.639
24.640        52.4       2.611
25.770        69.1       2.696
23.690        53.5       2.606
28.650        64.3       2.616
32.380        82.7       2.748
28.210        55.7       2.518
34.002        70.5       2.726
34.470        87.5       2.875
29.248        50.7       2.585
28.710        72.3       2.547
29.830        59.5       2.606
29.250        71.3       2.648
27.992        52.7       2.400
31.852        76.5       2.692
27.646        63.7       2.669
31.698        69.2       2.628
30.844        69.2       2.696
31.988        61.4       2.648
36.640        83.7       2.775
41.578        94.7       2.874
30.496        70.2       2.700
29.668        80.4       2.583
32.622        76.7       2.668
32.822        82.9       2.679
30.380        55.0       2.609
38.580        83.2       2.721
28.202        62.6       2.678
29.190        78.0       2.610
35.636        84.6       2.728
34.332        64.0       2.709
34.750        75.3       2.880
40.578        84.8       2.949
28.900        49.4       2.669
34.648        74.2       2.624
31.244        59.8       2.705
33.802        75.2       2.736
34.850        57.7       2.701
36.690        79.3       2.776
32.344        67.6       2.754
34.440        77.0       2.660
34.650        74.8       2.819