. For which data set is the sample correlation coefficient r closest to 0? B. Which data set has an apparent negative, but not perfect, linear relationship between its two variables?
. For which data set is the sample correlation coefficient r closest to 0? B. Which data set has an apparent negative, but not perfect, linear relationship between its two variables?
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.6: Permutations
Problem 4E
Related questions
Question
A. For which data set is the sample
B. Which data set has an apparent negative, but not perfect, linear relationship between its two variables?
Transcribed Image Text:W
t
1.0 8.2
2.0
4.8
3.0 10.3
4.0 6.3
5.
5.0
1.7
4+
6.0 5.1 3.
7.0 9.5
2.
1
8.0
3.8
9.0 9.3
10.0 6.6 Figure 3
11
10+
9-
8 X
7
6 +
0
X
2
X
3
X
4
X
5
X
6
7
X
8
X
X
W
9 10 11
m n
1.0 4.0
2.0 6.3
3.0 7.2
n
11+
10+
9+
8+
7-
4.0 4.2
5.0 5.1
6.0 8.3
7.0 5.6
8.0 7.1
9.0 9.1
10.0 7.9 Figure 4
4+ X
3-
2
0
X
X
3 4
X
3
X
6
X
7
X
8
X
9
X
m
10 11
Transcribed Image Text:Below are four bivariate data sets and their scatter plots. (Note that all of the scatter plots are displayed with the same scale.) Each data set is made up of
sample values drawn from a population.
x y
11
1.0 10.0 10- X
9+
8+
7+
6.
2.0 9.0
3.0 8.0
4.0 7.0
5.0
6.0
6.0 5.0
7.0 4.0
8.0 3.0
9.0 2.0
10.0 1.0 Figure 1
5+
4+
3-
2+
1.
0
+
X
X
6
X
X
X
8
X
x
9 10 11
11-
u V
1.0 8.3 10+
2.0 6.8
3.0 7.9
4.0 5.9
9-
8+
7+
6.
5.0 6.9
6.0 4.6
7.0 5.1
8.0 3.5
9.0 4.5
10.0 2.8 Figure 2
4-
3+
2+
0
X
X
X
6
*
8 9
X
10 11
U1
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