Concept explainers
To select: the best answer for the given question.
Answer to Problem 38E
The correct option is “E”.
Explanation of Solution
Given:
If every observation in a data set is multiplied by 10, the only one of the following that is not multiplied by 10 is
- The mean
- The
median - The IQR
- The standard deviation
- The variance
Calculation:
Measures of center (mean and median) as well as spread (IQR, standarddeviation, variance) are affected by multiplication. However, the variance is multiplied by 100 rather than 10 because standard deviation is the square root of variance.
Hence, the correct option is “E”.
Conclusion:
Hence, the correct option is “E”.
Chapter 2 Solutions
The Practice of Statistics for AP - 4th Edition
Additional Math Textbook Solutions
Basic Business Statistics, Student Value Edition
Introductory Statistics
Elementary Statistics (13th Edition)
A Problem Solving Approach To Mathematics For Elementary School Teachers (13th Edition)
Algebra and Trigonometry (6th Edition)
Elementary Statistics: Picturing the World (7th Edition)
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