y x1 x2 x3 0.222 7.3 0 0 0.395 8.7 0 0.3 0.422 8.8 0.7 1 0.437 8.1 4 0.2 0.428 9 0.5 1 0.467 8.7 1.5 2.8 0.444 9.3 2.1 1 0.378 7.6 5.1 3.4 0.494 10 0 0.3 0.456 8.4 3.7 4.1 0.452 9.3 3.6 2 0.112 7.7 2.8 7.1 0.432 9.8 4.2 2 0.101 7.3 2.5 6.8 0.232 8.5 2 6.6 0.306 9.5 2.5 5 0.0923 7.4 2.8 7.8 0.116 7.8 2.8 7.7 0.0764 7.7 3 8 0.439 10.3 1.7 4.2 0.0944 7.8 3.3 8.5 0.117 7.1 3.9 6.6 0.0726 7.7 4.3 9.5 0.0412 7.4 6 10.9 0.251 7.3 2 5.2 2e-05 7.6 7.8 20.7