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Concept explainers
To find: the standard deviation of each of the curves
![Check Mark](/static/check-mark.png)
Answer to Problem 45E
The standard deviation is approximately
Explanation of Solution
Given:
Calculation:
The standard deviation is the horizontal distance between the graph and themean, at a height of slightly more than half the height of the graph (see graph)
The orange graph with the highest peak has a standard deviation of about0.2.
The purple graph with the lowest peak has a standard deviation of about 0.5.
From the graph the
The standard deviation is approximately
Conclusion:
Therefore, the standard deviation is approximately
Chapter 2 Solutions
The Practice of Statistics for AP - 4th Edition
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