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hwk4_Sp18_appm4570.pdf - Homework#4 APPM 4570/5570...

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Homework #4 APPM 4570/5570, Statistical Methods, Spring 2018 Due in class on Friday February 16, 2018 . Instructions for “theoretical” ques- tions: Answer all of the following questions. The theoretical problems should be neatly numbered, written out, and solved. Please do not turn in messy work. Working in small groups is allowed, but it is important that you make an effort to master the material and hand in your own work. Note that you are also required to turn in the computational portion of this assignment. It is on Canvas, under the name hwk4_Sp18_appm4570-computational.ipynb. Theoretical Questions 1. In 2008, 3% of Boulder, CO adults (age 25 or older) had a PhD, 45% had at least a bachelor’s degree, and 75% were employed full-time. Consider randomly selecting an adult from Boulder, CO for an interview. Let A denote the event that the individual has a PhD, B , the event that the individual has a bachelor’s degree, and C the event that the individual is employed full-time. Assume that, in order to have a PhD, you must have a bachelor’s degree.
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