An internal study by Technology Services department at Lahey Electronics revealed company employees receive average of 6.0 emails per hour. Suppose the arrival of these emails is approximated by Poisson distribution.
(a) What is the probability Linda Lahey, company president, received exactly 2 emails between 4 P.M. and 5 P.M. yesterday? (Round your answer to 4 decimal places.)
(b) What is the probability she received 7 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.)