Seismologists use the term aftershock to describe the smaller earthquakes that follow a main earthquake. Following the

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Seismologists use the term “aftershock” to describe the smaller earthquakes that follow a main earthquake. Following the Northridge earthquake in 1994, the Los Angeles area experienced a record 2,929 aftershocks in a three-week period. The magnitudes (measured on the Richter scale) of these aftershocks as well as their interarrival times (in minutes) were recorded by the U.S. Geological Survey. (The data are saved in the EARTHQUAKE file.) Today seismologists continue to use these data to model future earthquake characteristics. Find and interpret the mean, median, and mode for both of these variables.

Which measure of central tendency is better for describing the magnitude distribution? The distribution of interarrival times?

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Statistics

ISBN: 9781292022659

12th International Edition

Authors: James T Mcclave, Terry Sincich

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