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# HW2 - HW#2 Due 02/25 AMS 311 Probability Theory(Spring 2011...

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HW#2, Due 02/25 AMS 311 Probability Theory (Spring 2011) Read: Ross, sections 3.1-3.4 of Ch3. You’d better go through the following examples before doing the assignments: Ch3: 2a-2g; 3a-3g; 3i-3n; 4a-4f Part 1 (10 points): PRINT your name and StonyBrook ID ( Last, First, #ID ) on the top on your work sheet. Staple your HW if more than 1 pages. Part 2: Problems (90 points) Write down your work step by step to get full score. (1) (5 points) Consider an experiment in which three fair dice are rolled. What is the conditional probability that at least one lands on 6, given that the sum of the three dice is at least 15? (2). (10 points) A poll shows that 41 percent of the women and 17 percent of the men that took a weight-loss class kept the weight off for at least one year after completing the class. These people then attended a success party at the end of a year. If 72 percent of the original class were male, (a) what percentage of those attending the party were women? (b) what percentage of the original class attended the party?

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HW2 - HW#2 Due 02/25 AMS 311 Probability Theory(Spring 2011...

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