# Various sources provide different earthquake data, but assume that for a recent 41-year period in the United

## Question:

a. Find the mean number of earthquakes per year.

b. Find the probability that in a given year, there is at least one earthquake in the United States that measures 6.0 or higher on the Richter scale.

c. Is it unlikely to have a year without any earthquakes that measure 6.0 or higher on the Richter scale? Why or why not?

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