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Quiz 1 FA 06 KEY

# Quiz 1 FA 06 KEY - Name ID KEY ECON 2843 Fall 2006 Quiz 1...

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Name KEY ID ECON 2843 Fall 2006 Quiz 1 Students must show all work on problems that involve calculation, even if the question is multiple choice. Questions 1 through 4 refer to the following: Average points scored per game were found for a sample size of 12 for 2005 NBA basketball players and classified as follows: cumulative Average points scored relative per game frequency 0 – 5 1/6 5 – 10 7/12 10 – 15 5/6 15 – 20 1 1. What is the mean points per game for this sample? 2. What is the variance of the points per game for this sample? 1

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3. If one of the sample observations is selected randomly, what is the probability that the player will score less points per game than the median class? 4. What is the cumulative frequency of the class 10 – 15 ? 5. The sample distribution appears to be Questions 6 – 9 refer to the following. A sample of workers from a large law firm showed the following amounts for their end-of-year
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