Bluman A.G. Elementary Statistics- A Step By Step Approach

Instructor’s Section AnswersReview Exercises1. Class fNewspaper 10Television 16Radio 12Internet 12502. The graph shows that the percentage of the people whoreceive their news by television is larger than thepercentage who receive their news by other means.How People Receive NewsInternet24%3. Class fBaseballs 4Golf balls 5Tennis balls 6Soccer balls 5Footballs 5254. The percentage of tennis balls sold was the largest of anygroup.20%Radio24%Ball Sales20% 16% Baseballs24%Newspaper20%Television32%20%5. Class f11 112 213 214 215 116 217 418 219 220 121 022 120Golf ballsTennis ballsSoccer ballsFootballscfLess than 10.5 0Less than 11.5 1Less than 12.5 3Less than 13.5 5Less than 14.5 7Less than 15.5 8Less than 16.5 10Less than 17.5 14Less than 18.5 16Less than 19.5 18Less than 20.5 19Less than 21.5 19Less than 22.5 206. The distribution is somewhat uniform with the exceptionof the class 16.5–17.5 where it is peaked. There is a gapfor the class 20.5–21.5.FrequencyFrequencyCumulativefrequencyy54321x010.5 11.5 12.5 13.5 14.5 15.5 16.5 17.5 18.5 19.5 20.5 21.5 22.5BUN county54321x011 12 13 14 15 16 17 18 19 20 21 22BUN county2015105x010.5 11.5 12.5 13.5 14.5 15.5 16.5 17.5 18.5 19.5 20.5 21.5 22.5BUN count7. Class limits Class boundaries f15–19 14.5–19.5 320–24 19.5–24.5 1825–29 24.5–29.5 1830–34 29.5–34.5 835–39 34.5–39.5 350cfLess than 14.5 0Less than 19.5 3Less than 24.5 21Less than 29.5 39Less than 34.5 47Less than 39.5 50IS–19