Stat 21 - Ibser - Quiz 1 - Feb 2, 2009This quiz should be handed in during your section either Monday Feb 9 or Tuesday Feb10. Your quiz will be scored for your own feedback, but you will get full points if yousimply answer every question. In order to prepare you for the midterm, I recommend thatyou take this quiz in 45 minutes without using the book, notes, or anyone else’s brain.You should use a calculator and normal curve, but show work, as you will have to on themidterm. This quiz covers Ch 3-5 of the text. You don’t have to hand in the questions,just the answers.1. 50 students took a test, and the table shows their scores. For all parts of this problem,assume that the scores are continuous and that they are evenly distributed within eachseparate class interval.Score10-3030-5050-6060-7070-8080-9090-100Count465810116(a) Draw a histogram for this data.(b) In what interval will you find the median value?(c) If possible, identify the exact value of the median. If not possible, explain why not.
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