An internal study by the Technology Services department at Lahey Electronics revealed company employees receive an average of 5 emails per hour. Assume the arrival of these emails is approximated by the Poisson distribution.
(a) What is the probability Linda Lahey, company president, received exactly 3 email between 4 P.M. and 5 P.M. yesterday? (Round your answer to 4 decimal places.)
(b) What is the probability she received 5 or more emails during the same period? (Round your answer to 4 decimal places.)
(c) What is the probability she did not receive any emails during the period? (Round your answer to 4 decimal places.)