Problems based on Poisson distribution
An internal study by Technology Services department at Lahey Electronics revealed company employees receive an average of two emails per hour. Suppose the arrival of these emails is approximated by the Poisson distribution.
a. What is the probability Linda Lahey, company president, received exactly 1 email between 4 P.M. and 5 P.M. yesterday?
b. What is the likelihood she received 5 or more email during the same period?
c. What is the possibility she did not receive any email during the period?