MEASURE y x1 x2 VARIANCE 1.0 1.0 1.0 DATA 0.43 0.647 77.1 0.39 0.638 78.3 0.44 0.651 76.0 0.42 0.648 77.9 0.43 0.640 74.1 0.42 0.643 74.6 0.41 0.643 76.0 0.46 0.651 73.3 0.42 0.650 78.6 0.40 0.639 78.7 0.39 0.636 77.8 0.41 0.641 75.8 0.43 0.649 77.3 0.39 0.633 76.5 0.41 0.645 78.6 0.43 0.642 74.7 0.40 0.638 75.5 0.39 0.635 78.2 0.40 0.639 75.9 0.40 0.639 76.6 0.42 0.645 78.0 0.44 0.650 77.2 0.40 0.642 78.0 0.43 0.648 76.1 0.42 0.642 74.6 0.39 0.633 77.5