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Unformatted text preview: success being a call in each interval. We do not know n or p but we do know = np . Thus, k calls per unit time is given by e- k /k !. Now, suppose we know on the average there are 2 calls per second. Find the probability of having at most 3 calls in 5 seconds. (Hint: Find the average number of arrivals in 5 seconds.) 6. We buy cylinders with a diameter of 2 and is willing to accept diameters that are o by as much as . 05. The factory produces a diameter that is normally distributed with = 2. (a). If = 0 . 08, what percentage will be rejected by us? (b). If the rejection rate is 20%, nd . 7. Problem 65, page 181. 8. Problem 67, page 181. 9. Problem 72, page 181....
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This note was uploaded on 06/09/2010 for the course EE 131A taught by Professor Lorenzelli during the Spring '08 term at UCLA.
- Spring '08