160 160 140 - 140 120 120 - 100 100 80 80 60 60 15 20 25 Variable1 (a) 20 30 25 30 15 Variable1 (b) Variable2 Variable2

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.6: Quadratic Functions
Problem 12E
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How many variables are included in the scatterplot in Figure 2.84(a)? Identify each as categorical or quantitative. Estimate the range for Variable1 and for Variable2.
 
Considering Direction of Association
(a)  
How many variables are included in the scatterplot in Figure 2.84(a)? Identify each as categorical or quantitative. Estimate the range for Variable1 and for Variable2.
Figure 2.84   Describe the association between these variables
(b)  
In Figure 2.84(a), does the association between the variables appear to be positive or negative?
(c)  
Figure 2.84(b) shows the same scatterplot with regression line added. Which variable is the response variable? Does the line show a positive or negative association?
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Variable1
(a)
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Variable1
(b)
Variable2
Variable2
Transcribed Image Text:160 160 140 - 140 120 120 - 100 100 80 80 60 60 15 20 25 Variable1 (a) 20 30 25 30 15 Variable1 (b) Variable2 Variable2
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