The shear resistance of soil, y kN m –2 , is determined by measurements as a function of the normal stress, x kN m –2 . The data are as shown below: X i 10 11 12 13 14 15 16 17 18 19 20 21 Y i 14.08...

The shear resistance of soil,ykN m^–2, is determined by measurements as a function of the normal stress,xkN m^–2. The data are as shown below:

calculate the standard deviation of points about the regression line, then plot residuals against the input, and comment on the results.