spring2008stat201exam2-version2KEY

# spring2008stat201exam2-version2KEY - Stat 201 Exam 2 Spring...

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Stat 201 Exam 2 Spring 2008 Version 2 KEY Page 2 of 9 2. Suppose my brother is applying for two different college scholarships, one sponsored by the State, the other sponsored by the University. He figures his chances are as follows: 45% chance of winning the State scholarship, 60% chance of winning the University scholarship, and a 35% chance of winning both. Let S denote ‘wins the State scholarship’ Let U denote ‘wins the University scholarship’. (a) Please make a joint probability table representing this scenario, and fill-in all the probabilities. [6 pts] The information gives the following three values: U Not U S .35 .45 Not S .60 1 U Not U S .35 .10 .45 Not S .25 .30 .55 .60 .40 1 Of course, the table may be rotated. (b)
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spring2008stat201exam2-version2KEY - Stat 201 Exam 2 Spring...

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