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Unformatted text preview: STATISTICS 401.3 Final Exam Fall 2005 IDN: NAME: . Directions: This test consists of 5 problems. Write all of your answers in the space provided. If you need more space, use the back. You may use the textbook and any notes you wish. You have 1 hour and 50 minutes. Partial credit will be assigned where appropriate, so it is in your best interest to SHOW ALL OF YOUR WORK. This is a 100point test. The point value of each problempart is shown in parentheses. Problem: 1 2 3 4 5 Total Possible: 14 20 22 21 23 100 Score: 1 Problem 1. 1. (4 points) We select a studentathlete from a small private high school at random. Let A be the event { the studentathlete is male } and B be the event { the studentathlete prefers track } . We are told that the proportion of maleathletes who prefer track is the same as the proportion of student athletes who prefer track ( which then is also the same as the proportion of femaleathletes who prefer track ). This statement implies that ( circle one ): A The events A and B are disjoint. B The events A and B are independent. C The events A and B are both disjoint and independent. D The events A and B are neither disjoint nor independent. 2. (4 points) In the same small private high school, sixtyfive percent of the studentathletes are male, and are allowed to participate in three varsity sports: football, basketball, and track. However, the female athletes are allowed to participate in only basketball and track. Thirty percent of the student athletes say that football is their favorite sport in which to compete, while 50% prefer basketball and 20% prefer track. Place this information in the table below....
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This note was uploaded on 01/11/2012 for the course STAT 401 taught by Professor Akritas during the Fall '00 term at Pennsylvania State University, University Park.
 Fall '00
 Akritas
 Statistics

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