Statistical analysis of elliptic drawings (3): Log time versus log perimeter.

The equation for the linear regression is: . The best and are presented for each of the three subjects and three speeds, as well as the goodness of fit of the data points to the linear regression expressed by: (). Note that the values assess how much the approximation of the data provided by the linear regression is better than the mean value of the data. For subject the scores are low because the slopes () are close to zero. Hence, the linear approximations are not better than the mean values of the data points. For further details see Figure 2.