# Let m be the number of local calls and n the number

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Unformatted text preview: have 4. Find the mean and standard deviation of the number of customers are that arrive at Bojangles’ in one hour. 2.48. When a power surge occurs on an electrical line, it can damage a computer without a surge protector. There are three types of surges: “small” surges occur at rate 8 per day and damage a computer with probability 0.001; “medium” surges occur at rate 1 per day and will damage a computer with probability 0.01; “large” surges occur at rate 1 per month and damage a computer with probability 0.1. Assume that months are 30 days. (a) what is the 98 CHAPTER 2. POISSON PROCESSES expected number of power surges per month? (b) What is the expected number of computer damaging power surges per month? (c) What is the probability a computer will not be damaged in one month? (d) What is the probability that the ﬁrst computer damaging surge is a small one? 2.49. Wayne Gretsky scored a Poisson mean 6 number of points per game. 60% of these were goals and 40% were assist...
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## This document was uploaded on 03/06/2014 for the course MATH 4740 at Cornell University (Engineering School).

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