Normal distribution 40 0.0,0.000000 0.1,0.039828 0.2,0.079260 0.3,0.117911 0.4,0.155422 0.5,0.191463 0.6,0.225745 0.7,0.258036 0.8,0.288145 0.9,0.315940 1.0,0.341345 1.1,0.364334 1.2,0.384930 1.3,0.403200 1.4,0.419243 1.5,0.433193 1.6,0.445201 1.7,0.455435 1.8,0.464070 1.9,0.471283 2.0,0.477250 2.1,0.482136 2.2,0.486097 2.3,0.489276 2.4,0.491803 2.5,0.493790 2.6,0.495339 2.7,0.496533 2.8,0.497445 2.9,0.498134 3.0,0.498650 3.1,0.499032 3.2,0.499313 3.3,0.499517 3.4,0.499663 3.5,0.499767 3.6,0.499841 3.7,0.499892 3.8,0.499928 3.9,0.499952