Use the Poisson distribution to find the probability. Various
sources provide different earthquake data, but assume that for a
recent 41-year period in the U.S., there were 268 earthquakes
measured at 6.0 or higher on the Richter scale (based on U.S.
Geological Survey Data).
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 U.S. that measures 6.0 or higher on the Richter
scale.
c) Is it unlikely to have a year without any earthquakes that
measures 6.0 or higher on the Richter scale? Why or why not?