8.0 8.0 10 11 9.0 9.0 Figure 1 Figure 2 10.0 10.0 1.0 3.6 1-
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:v1
3.
v 4
Below are four bivariate data sets and the scatter plot for each. (Note that each scatter plot is displayed on the same scale.) Each data set is made up of sample
values drawn from a population.
y
V
1.0
7.8
11-y
1.0
1.0
11-
2.0
10
4.9
10+
2.0
2.0
9+
3.0 10.4
3.0
3.0
8-
7-
6-
5-
4.0
6.1
4.0
4.0
5.0 1.7
5.0
5.0
4+
6.0
5.1
6.0
6.0
3-
2-
2+
7.0
8.9
7.0
7.0
8.0
3.8
0 123 45 6
8 9 10 11
8.0
8.0
910 11
2 3
6.
9.0 9.9
9.0
9.0
Figure 1
Figure 2
10.0 7.0
10.0 10.0
W
1.0
8.0
11
1.0
3.6
11
10-
10
2.0
7.2
2.0
6.2
3.0
7.7
3.0
7.1
4.0
5.6
4.0
4.2
6-
5+
5.0
6.9
5.0
5.0
4
6.0
4.4
6.0
8.4
3.
7.0
4.9
7.0
5.5
8.0
3.6
6 7 8 9 10 11
8.0
6.7
0.
123 4
89 10 11
123
567
9.0
4.3
Finure 3
9.0
9.1
Figure 4
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187 0n4
Transcribed Image Text:3+
3-
2+
6.0
5.1
6.0
6.0
7.0
8.9
7.0
7.0
8.0
3.8
8.0
8.0
1 2 3 4 5 67 8 9 10 11
1 2 3 4 5 6 7 8 9 10 11
9.0 9.9
9.0 9.0
Figure 1
Figure 2
10.0 7.0
10.0 10.0
m
1.0
8.0
11
1.0
3.6
11
10+
10+
2.0
7.2
2.0 6.2
9+
3.0 7.7
8+ x
3.0
7.1
4.0
5.6
4.0
4.2
5+
5.0 6.9
5.0
5.0
4+
4+
6.0
4.4
6.0
8.4
2-
7.0 4.9
7.0
5.5
8.0
3.6
6 7 8 9 10 11
8.0
6.7
8.
10 11
1 2 3 4
1 2 34
9.0
4.3
9.0
9.1
Figure 3
Figure 4
10.0 2.9
10.0 7.2
Answer the following questions about the relationships between pairs of variables and the values of r, the sample correlation coefficient. The same response may
be the correct answer for more than one question.
1. Which data set indicates the trongest negative linear
relationship between its two vanables?
Choose one
2. For which data set is the sample correlation
coefficient r equal to 17
Choose one
3. Which data set has an apparent positive, but not
perfect, linear relationship between its two variables?
Choose one
4. For which data set is the sample correlation
coefficient r closest to 0?
Choose one
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