Statistics for Management and Economics (Book Only)
11th Edition
ISBN: 9781337296946
Author: Gerald Keller
Publisher: Cengage Learning
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Chapter 3.1, Problem 21E
To determine
Use a suitable graphical method to summarize the data.
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The figure below plots a histogram of ages for Olympic athletes. What are ways that this plot could
be improved: Mark all that apply.
count
20000-
15000-
10000-
5000-
0-
20
20
40
age_of_athlete
Do a scatter plot instead of a histogram to more effectively portray the information
Change X-axis label
Add a title
Capitalize Y-axis label
80
60
How does the speed of a runner vary over the course of a marathon (a distance of 42.195 km)? Consider determining both the time to run the first 5 km and the time to run between the 35-km and 40-km points, and then subtracting the former time from the latter time. A positive value of this difference corresponds to a runner slowing down toward the end of the race. The accompanying histogram is based on times of runners who participated in several different Japanese marathons (“Factors AffectingRunners' Marathon Performance,” Chance, Fall, 1993: 24-30).
What are some interesting features of this histogram? What is a typical difference value? Roughly what proportion of the runners ran the late distance more quickly than the early distance?
Histogram for Exercise 22
Chapter 3 Solutions
Statistics for Management and Economics (Book Only)
Ch. 3.1 - Prob. 1ECh. 3.1 - Prob. 2ECh. 3.1 - Prob. 3ECh. 3.1 - Prob. 4ECh. 3.1 - Prob. 5ECh. 3.1 - Prob. 6ECh. 3.1 - Prob. 7ECh. 3.1 - Prob. 8ECh. 3.1 - Prob. 9ECh. 3.1 - Prob. 10E
Ch. 3.1 - Prob. 11ECh. 3.1 - Prob. 12ECh. 3.1 - Prob. 13ECh. 3.1 - Prob. 14ECh. 3.1 - Prob. 15ECh. 3.1 - Prob. 16ECh. 3.1 - Prob. 17ECh. 3.1 - Prob. 18ECh. 3.1 - Prob. 19ECh. 3.1 - Prob. 20ECh. 3.1 - Prob. 21ECh. 3.1 - Prob. 22ECh. 3.1 - Prob. 23ECh. 3.1 - Prob. 24ECh. 3.1 - Prob. 25ECh. 3.1 - Prob. 26ECh. 3.1 - Prob. 27ECh. 3.1 - Prob. 28ECh. 3.1 - Prob. 29ECh. 3.2 - Prob. 32ECh. 3.2 - Prob. 33ECh. 3.2 - Prob. 34ECh. 3.2 - Prob. 35ECh. 3.2 - Prob. 36ECh. 3.2 - Prob. 37ECh. 3.2 - Prob. 38ECh. 3.2 - Prob. 39ECh. 3.2 - Prob. 40ECh. 3.2 - Prob. 41ECh. 3.2 - Prob. 42ECh. 3.2 - Prob. 43ECh. 3.2 - Prob. 44ECh. 3.2 - Prob. 45ECh. 3.2 - Prob. 46ECh. 3.2 - Prob. 47ECh. 3.2 - Prob. 48ECh. 3.2 - Prob. 49ECh. 3.2 - Prob. 50ECh. 3.2 - Prob. 51ECh. 3.2 - Prob. 52ECh. 3.2 - Prob. 53ECh. 3.2 - Prob. 54ECh. 3.2 - Prob. 55ECh. 3.3 - Prob. 56ECh. 3.3 - Prob. 57ECh. 3.3 - Prob. 58ECh. 3.3 - Prob. 59ECh. 3.3 - Prob. 60ECh. 3.3 - Prob. 61ECh. 3.3 - Prob. 62ECh. 3.3 - Prob. 63ECh. 3.3 - Prob. 64ECh. 3.3 - Prob. 65ECh. 3.3 - Prob. 66ECh. 3.3 - Prob. 67ECh. 3.3 - Prob. 68ECh. 3.3 - Prob. 69ECh. 3.3 - Prob. 70ECh. 3.3 - Prob. 71ECh. 3.3 - Prob. 72ECh. 3.3 - Prob. 73ECh. 3.3 - Prob. 74ECh. 3.3 - Prob. 75ECh. 3.3 - Prob. 76ECh. 3.3 - Prob. 77ECh. 3.3 - Prob. 78ECh. 3.3 - Prob. 79ECh. 3.3 - Prob. 80ECh. 3.3 - Prob. 81ECh. 3.4 - Prob. 82ECh. 3.4 - Prob. 83ECh. 3.4 - Prob. 84ECh. 3.4 - Prob. 85ECh. 3 - Prob. 86CECh. 3 - Prob. 87CECh. 3 - Prob. 88CECh. 3 - Prob. 89CECh. 3 - Prob. 90CECh. 3 - Prob. 91CECh. 3 - Prob. 92CECh. 3 - Prob. 93CECh. 3 - Prob. 94CECh. 3 - Prob. 95CECh. 3 - Prob. 96CECh. 3 - Prob. 97CECh. 3 - Prob. 98CECh. 3 - Prob. 99CECh. 3 - Prob. 100CECh. 3 - Prob. 101CECh. 3 - Prob. 102CECh. 3 - Prob. 103CECh. 3 - Prob. 104CECh. 3 - Prob. 105CECh. 3 - Prob. 106CECh. 3 - Prob. 107CECh. 3 - Prob. 108CECh. 3 - Prob. 109CECh. 3 - Prob. 110CE
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- Note: Please help with last graph and if anything already done is incorrect!arrow_forwardChoose the correct statement about the following histogram. Number of students 50 40 30 20 10 0 - 0 20 40 60 80 Score on final exam (maximum possible = 100) 100 O The histogram is skewed to the left because it has a shorter tail to the left. The histogram is skewed to the right because it has a longer tail to the right. O The histogram is skewed to the right because it has a shorter tail to the right. O The histogram is skewed to the left because it has a longer tail to the left.arrow_forwardThe last digit of the heights of 67 statistics students were obtained as part of an experiment conducted for a class. Use the following frequency distribution to construct a histogram. What can be concluded from the distribution of the digits? Specifically, do the heights appear to be reported or actually measured? Digit Frequency 0 15 5 5 1 T Choose the correct histogram below. O A. O B. O C. D. 18- 56789 0123456789 ܩܫܠ 6789 123456789 Are the data reported or measured? O A. The data appears to be measured. The heights occur with roughly the same frequency. O B. The data appears to be measured. Certain heights occur a ..arrow_forward
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