mid - PSTAT 5E Feb.14 2006 PSTAT 5E Midquarter Examination...

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Unformatted text preview: PSTAT 5E Feb.14, 2006 PSTAT 5E Midquarter Examination, Winter 2006 12:30pm - 1:45pm DO NOT TURN TO THE QUESTIONS UNTIL TOLD TO DO SO! NAME: PERM #: NAME OF YOUR TA: HOURS OF YOUR DISCUSSION SECTION: INSTRUCTIONS: You have 1 hour and 15 minutes to complete this exam. You should attempt ALL questions. You are allowed to consult your textbook and class notes. In order to receive full credit, you need to show your work. Anyone found copying another studentsâ€™ work will be given zero score. Questions 1 2 3 4 5 total Points available 20 20 20 20 20 100 Points awarded GOOD LUCK!!! 1 PSTAT 5E Feb.14, 2006 1. The following probability distribution represents the number of jobs college students at UCSB have: x 1 2 P(X=x) 0.5 0.3 p (a) What is the probability that a randomly picked UCSB student has two jobs? (b) What is the probability that a randomly picked UCSB student has at least one job? (c) What is the mean and standard deviation of the number of jobs UCSB students have?...
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mid - PSTAT 5E Feb.14 2006 PSTAT 5E Midquarter Examination...

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