# hwk3 - are performed to see which one of the two occurs...

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UNIVERSITY OF CALIFORNIA, SANTA BARBARA Department of Electrical and Computer Engineering ECE 139 Probability and Statistics Spring 2008 Homework Assignment #3 (Due on Monday 4/21/2008 by 6 pm in the Homework Box ) Please note your discussion section on your homework paper. A. Solve the following problems in the textbook: 1.6.3, 1.6.5, 1.7.3, 1.7.6, 1.8.1, 1.9.1, 1.9.2. B. Solve an additional problem (more challenging..?): A and B are mutually exclusive events with probabilities P ( A ) and P ( B ), respectively. Independent trials of the experiment
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Unformatted text preview: are performed to see which one of the two occurs ﬁrst. What is the probability that event A occurs before event B ? Next solve a similar problem for the case where A and B are independent events (and not mutually exclusive). What is the probability that B does not occur before A ? (Here we allow for the possibility that they occur simultaneously). Note: Answers to part B should only be in terms of P ( A ) and P ( B ) ....
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