Question: Geology: Earthquakes. 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. The following is based on information taken from the National Earthquake Information Service of the U.S. Geological Survey. Additional data may be

found by visiting the Brase/Brase statistics site and finding the link to earthquakes.

1. Make a scatter diagram and draw the line you think best fits the data,
2. Would you say the correlation is low, moderate, of strong? positive or negative?
3. Use a calculator to verify that \(\sum{x}\) = 24.1, \(\sum{{{x}^{2}}}\) = 85.75, \(\sum{y}\) = 53.5, \(\sum{{{y}^{2}}}\)

458.31, and \(\sum{xy}\) = 190.18. Compute r. As x increases, does the value of r imply

that y should tend to increase or decrease? Explain

Price: $2.99

Solution: The downloadable solution consists of 2 pages
Deliverable: Word Document