brain-wt	sex
1.607000000e+003	m
1.157000000e+003	m
1.248000000e+003	m
1.310000000e+003	m
1.398000000e+003	m
1.237000000e+003	m
1.232000000e+003	m
1.343000000e+003	m
1.380000000e+003	m
1.274000000e+003	m
1.245000000e+003	m
1.286000000e+003	m
1.508000000e+003	m
1.105000000e+003	m
1.123000000e+003	m
1.198000000e+003	m
1.300000000e+003	m
1.249000000e+003	m
1.185000000e+003	m
9.150000000e+002	m
1.345000000e+003	m
1.107000000e+003	m
1.357000000e+003	m
1.227000000e+003	m
1.205000000e+003	m
1.435000000e+003	m
1.289000000e+003	m
1.093000000e+003	m
1.211000000e+003	m
1.260000000e+003	m
1.193000000e+003	m
1.330000000e+003	m
1.130000000e+003	m
1.357000000e+003	m
1.193000000e+003	m
1.232000000e+003	m
1.321000000e+003	m
1.260000000e+003	m
1.380000000e+003	m
1.230000000e+003	m
1.136000000e+003	m
1.029000000e+003	m
1.223000000e+003	m
1.240000000e+003	m
1.264000000e+003	m
1.020000000e+003	m
1.415000000e+003	m
1.410000000e+003	m
1.275000000e+003	m
1.230000000e+003	m
1.085000000e+003	m
1.048000000e+003	m
1.181000000e+003	m
1.103000000e+003	m
1.165000000e+003	m
1.547000000e+003	m
1.173000000e+003	m
1.660000000e+003	m
1.307000000e+003	m
1.535000000e+003	m
1.315000000e+003	m
1.257000000e+003	m
1.424000000e+003	m
1.309000000e+003	m
1.170000000e+003	m
1.412000000e+003	m
1.270000000e+003	m
1.230000000e+003	m
1.233000000e+003	m
1.561000000e+003	m
1.193000000e+003	m
1.272000000e+003	m
1.355000000e+003	m
1.137000000e+003	m
1.354000000e+003	m
1.110000000e+003	m
1.265000000e+003	m
1.407000000e+003	m
1.227000000e+003	m
1.330000000e+003	m
1.222000000e+003	m
1.305000000e+003	m
1.475000000e+003	m
1.177000000e+003	m
1.337000000e+003	m
1.145000000e+003	m
1.070000000e+003	m
1.305000000e+003	m
1.085000000e+003	m
1.303000000e+003	m
1.390000000e+003	m
1.532000000e+003	m
1.238000000e+003	m
1.233000000e+003	m
1.280000000e+003	m
1.245000000e+003	m
1.459000000e+003	m
1.157000000e+003	m
1.302000000e+003	m
1.385000000e+003	m
1.310000000e+003	m
1.342000000e+003	m
1.303000000e+003	m
1.248000000e+003	m
1.115000000e+003	m
1.365000000e+003	m
1.227000000e+003	m
1.353000000e+003	m
1.125000000e+003	f
1.027000000e+003	f
1.112000000e+003	f
9.830000000e+002	f
1.090000000e+003	f
1.247000000e+003	f
1.045000000e+003	f
9.830000000e+002	f
9.720000000e+002	f
1.045000000e+003	f
9.370000000e+002	f
1.245000000e+003	f
1.200000000e+003	f
1.270000000e+003	f
1.200000000e+003	f
1.145000000e+003	f
1.090000000e+003	f
1.040000000e+003	f
1.343000000e+003	f
1.010000000e+003	f
1.095000000e+003	f
1.180000000e+003	f
1.168000000e+003	f
1.095000000e+003	f
1.040000000e+003	f
1.235000000e+003	f
1.050000000e+003	f
1.038000000e+003	f
1.046000000e+003	f
1.255000000e+003	f
1.228000000e+003	f
1.000000000e+003	f
1.225000000e+003	f
1.220000000e+003	f
1.085000000e+003	f
1.067000000e+003	f
1.006000000e+003	f
1.138000000e+003	f
1.175000000e+003	f
1.252000000e+003	f
1.037000000e+003	f
9.580000000e+002	f
1.020000000e+003	f
1.068000000e+003	f
1.107000000e+003	f
1.317000000e+003	f
9.520000000e+002	f
1.056000000e+003	f
1.203000000e+003	f
1.183000000e+003	f
1.392000000e+003	f
1.130000000e+003	f
1.284000000e+003	f
9.960000000e+002	f
1.228000000e+003	f
1.087000000e+003	f
1.035000000e+003	f
1.170000000e+003	f
1.064000000e+003	f
1.250000000e+003	f
1.129000000e+003	f
1.088000000e+003	f
1.037000000e+003	f
1.117000000e+003	f
1.095000000e+003	f
1.027000000e+003	f
1.027000000e+003	f
1.190000000e+003	f
1.153000000e+003	f
1.037000000e+003	f
1.120000000e+003	f
1.212000000e+003	f
1.024000000e+003	f
1.135000000e+003	f
1.177000000e+003	f
1.096000000e+003	f
1.114000000e+003	f