Statistics Chapter 2 Questions & Answers

Statistics Chapter 2 Questions & Answers 37. For the distribution in the following table, what is the 50th percentile? a. X = 32 X c% b. X = % c. X = % d. X = % 20-29 20% - ANSWER: 32 A group of quiz scores ranges from 3 to 10, but no student had a score of X = 5. If the scores are put in a frequency distribution table, X = 5 would not be listed in the X column. - ANSWER: True A grouped frequency distribution table does not provide enough information to obtain a complete listing of the original set of scores. - ANSWER: True A grouped frequency distribution table lists one interval as, 20-29. The width of this interval is 9 points - ANSWER: True A researcher records the number of traffic tickets issued in each county along the New York State thruway. If the results are presented in a frequency distribution graph, what kind of graph should be used? - ANSWER: either a histogram or polygon A researcher surveys a sample of n = 200 college students and asks each person to identify his or her favorite movie from the past year. If the data were organized in a frequency distribution table, the first column would be a list of movies. - ANSWER: False