An internal study by the Technology Services department at Lahey Electronics revealed company employees receive an average of 4.4 non-work-related e-mails per hour. Assume the arrival of these e-mails is approximated by the Poisson distribution. a. What is the probability Linda Lahey, company president, received exactly 4 non-work-related e-mails between 4 p.m. and 5 p.m. yesterday? (Round your probability to 4 decimal places.) Probability b. What is the probability she received 7 or more non-work-related e-mails during the same period? (Round your probability to 4 decimal places.) Probability c. What is the probability she received three or less non-work-related e-mails during the period? (Round your probability to 4 decimal places.)