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In: Statistics and Probability

An internal study by the Technology Services department at Lahey Electronics revealed company employees receive an...

An internal study by the Technology Services department at Lahey Electronics revealed company employees receive an average of 3.5 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.)

B. What is the probability she received 6 or more non-work-related e-mails during the same period? (Round your probability to 4 decimal places.)

C. What is the probability she received four or less non-work-related e-mails during the period? (Round your probability to 4 decimal places.)

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orchestra answered 1 year ago
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