Concept explainers
Relationship between body weight and backpack weight for this group of hikers.

Answer to Problem 7E
Linear, positive, and moderately strong association with one outlier.
Explanation of Solution
Given information:
For
On horizontal axis: Body weight
On vertical axis: Backpack weight
Strength: In the scatterplot, the points do not lie very close together and do not spread far apart as well. Thus, strength will be moderately strong.
Form: In the scatterplot, no strong curvature exists. Thus, form will be linear.
Direction: Due to the upward slope of the pattern, the direction will be positive.
Unusual features: In the scatterplot, rightmost point appears to deviate significantly from the general linear pattern in the other points. Thus, one outlier exists.
Chapter 3 Solutions
PRACTICE OF STATISTICS F/AP EXAM
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