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Concept explainers
a.
Find the number of morbidly obese people in the dotplot.
a.
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Answer to Problem 1SE
The number of morbidly obese people in the dotplot is 11.
Explanation of Solution
In the dotplot, 134 people according to the Survey in 2010 are plotted.
Here, BMI of more than 40 is considered as morbidly obese.
From the dotplot, 11 dots are in BMI of more than 40. Hence, the number of morbidly obese in the dotplot is 11.
b.
Find and compare the percentage of people who are morbidly obese.
b.
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Answer to Problem 1SE
The percentage of people who are morbidly obese is 8%.
Explanation of Solution
Calculation:
The percentage of people who are morbidly obese is obtained as follows:
Thus, the percentage of people who are morbidly obese is 8%.
Comparison:
The percentage of people who are morbidly obese is 8%, which is greater than the estimated percentage of people who are morbidly obese in Country U.
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Chapter 2 Solutions
Essential Statistics (2nd Edition)
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