4. A statistical analysis of 1,000 long-distance telephone calls made from the headquarters of the Bricks and Clicks Computer Corporation indicates that the length of these calls is normally distributed, with mean u = 240 seconds and standard deviation o = 40 seconds. a. What is the probability that a call lasted less than 250 seconds? b. What is the probability that a call lasted more than 250 seconds? b. What is the probability that a call lasted between 250 and 300 seconds? c. 1% of all calls will last less than how many seconds?

4. A statistical analysis of 1,000 long-distance telephone calls made from the headquarters of the Bricks and Clicks Computer Corporation indicates that the length of these calls is normally distributed, with mean u = 240 seconds and standard deviation o = 40 seconds. a. What is the probability that a call lasted less than 250 seconds? b. What is the probability that a call lasted more than 250 seconds? b. What is the probability that a call lasted between 250 and 300 seconds? c. 1% of all calls will last less than how many seconds?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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a..089 b..086 c..088 d..087
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