Concept explainers
To select the best option from the multiple choice question according to the given question.
Answer to Problem AP1.3CPT
Option (b) is correct.
Explanation of Solution
Given:
All scores are doubled and decreased by
Since the mean is a measure of the centre, the mean is influenced the same way as the scores and thus the mean is doubled and decreased by
Since the standard deviation of a measure of spread, the standard deviation is also doubled but not decreased by
Thus we note that the new scores have mean
Chapter 4 Solutions
PRACTICE OF STATISTICS F/AP EXAM
Additional Math Textbook Solutions
Elementary Statistics: Picturing the World (7th Edition)
University Calculus: Early Transcendentals (4th Edition)
Introductory Statistics
Algebra and Trigonometry (6th Edition)
Elementary Statistics
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