You are given the following set of calculations concerning weights (Y) to the nearest pound, the heights (X) to the nearest inch and the ages (X) of a sample of 12 students. = 156, , = 648, , = 112, = 43,225, = 7,820, ,2 = 40,740, 2 = 1,980, ,, = 6,560, and y = 51,212 Obtain the three simple correlation coefficients and use them to calculate the partial correlation coeffi- cient 123. ridering the