data := [[-2.256, .879], [-1.764, 5.800], [-.684, -.854], [-.776, 6.750], [3.718, 7.394], [.081, -1.315], [-2.357, 4.534], [6.485, 4.021], [6.518, 3.999], [2.818, 7.689], [1.788, -1.668], [-2.720, 2.719]];