Scatter plots of some statistical properties for 126 loops. (a) Magnetic field strength at the loop top vs. loop height (Pearson correlation coefficient c_P of −0.59), (b) Average magnetic field strength along the loop vs. loop height (c_P = −0.30) (c) Magnetic field strength on loop top vs. loop length (c_P = −0.64), (d) Average magnetic field strength along the loop vs. loop length (c_P = −0.44), (e) Magnetic field strength on loop top vs. loop average intensity (c_P = 0.35), (f) Average magnetic field strength along the loop top vs. loop average intensity (c_P = 0.58).