Stats Modeling the World, 4th Edition

Published by Pearson
ISBN 10: 0133151549
ISBN 13: 978-0-13315-154-1

Chapter 3 - Displaying and Summarizing Quantitative Data - Exercises - Page 73: 6

Answer

a) The ages of people at the Little League games would likely to be bimodal and skewed to the right because the average age of the player is one mode and the people in the crowd is the other mode. b) The distribution of the number of siblings of people in your class is likely to be unimodal and skewed to the right. Most people have 0,1,2,3, siblings, while some people have more siblings. c) The distribution of pulse rate of college-age males would likely to be unimodal and symmetric. Most males' pulse rate would be around the average pulse rate for college-aged males, with some males having lower and higher pulse rates. d) The distribution of the number of times heads is shown versus the number of times tails is shown in 100 tosses would likely be uniform.

Work Step by Step

a) The ages of people at the Little League games would likely to be bimodal and skewed to the right because the average age of the player is one mode and the people in the crowd is the other mode. b) The distribution of the number of siblings of people in your class is likely to be unimodal and skewed to the right. Most people have 0,1,2,3, siblings, while some people have more siblings. c) The distribution of pulse rate of college-age males would likely to be unimodal and symmetric. Most males' pulse rate would be around the average pulse rate for college-aged males, with some males having lower and higher pulse rates. d) The distribution of the number of times heads is shown versus the number of times tails is shown in 100 tosses would likely be uniform.
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