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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When computer generates random digits, the probability that any particular digit in the set {0,1,2,... 9}is generated on any individual trial is 1/10 0.1. Suppose that we are generating digits one at a time and let X the number of digits that the computer generates to get the first zero. (a) Detemine the probability that the first 0 occurs on the fifth random digit generated_ (6) How many random digits would you expect to have to generate in order to observe the first 0? (c) Calculate and interpret the standard deviation of X.

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Suppose that in a senior college class of 500 students it is found that 210 smoke, 258 drink alcoholic beverages, 216 eat between meals, 122 smoke and drink alcoholic beverages, 83 eat between meals and drink alcoholic beverages, 97 smoke and eat between meals, and 52 engage in all three of these bad health practices. If a member of this senior class is selected at random, find the probability that the student: (put your answers in decimal notation using three decimal places) a) smokes but does not drink alcoholic beverages b) eats between meals and drinks alcoholic beverages but does not smoke c) neither smokes nor eats between meals
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