Concept explainers
To select: the best answer for the given question.
Answer to Problem 2PT
The standard deviation is 4
Explanation of Solution
Given:
We are given a
From the above graph, the center value for the graph is 2. It is known that the center for normal curve will be the mean of the corresponding distribution.
Therefore, the mean of the distribution,
Also, at one standard deviation away from the mean, normal curve has its infection point
From the above graph, at -4 and 6,the cure is changing its direction .In other words ,theinflection points are -4 and 6
That is µ-s=-4 and µ+ s=6
As
Hence, the standard deviation is 4
Conclusion:
Hence, the standard deviation is 4
Chapter 2 Solutions
The Practice of Statistics for AP - 4th Edition
Additional Math Textbook Solutions
Elementary Statistics: Picturing the World (6th Edition)
Statistics: The Art and Science of Learning from Data (4th Edition)
Statistics for Business and Economics (13th Edition)
Introductory Statistics
Basic Business Statistics, Student Value Edition (13th Edition)
- MATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons IncProbability and Statistics for Engineering and th...StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage LearningStatistics for The Behavioral Sciences (MindTap C...StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage Learning
- Elementary Statistics: Picturing the World (7th E...StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSONThe Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. FreemanIntroduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. Freeman