BUSI 230 Week 8

Is the magnitude of an earthquake related to the depth below the surface at which the quake occurs? Let x be the magnitude of an earthquake (on the Richter scale), and let y be the depth (in kilometers) of the quake below the surface at the epicenter. (a) Make a scatter diagram of the data. Then visualize the line you think best fits the data. (b) Use a calculator to verify that Σx = 24.6, Σx2 = 89.86, Σy = 52.6, Σy2 = 444.72 and Σxy = 191.18. Compute r. (Round to 3 decimal places.) An...