In: Statistics and Probability
The number of earthquakes that occur per week in California
follows a Poisson distribution with a
mean of 1.5.
(a) What is the probability that an earthquake occurs within the
first week? Show by hand and
provide the appropriate R code.
(b) What is the expected amount of time until an earthquake
occurs?
(c) What is the standard deviation of the amount of time until two
earthquakes occur?
(d) What is the probability that it takes more than a month to
observe 4 earthquakes? Show by hand
(you may simply leave it as an integral) and provide the
appropriate R code.
(e) What is the median amount of time it takes for 5 earthquakes to
occur? Show by hand (you may
simply leave it as an integral, but be sure to explain how to find
the median) and provide the
appropriate R code.