(c) For which data set is the sample correlation coefficient r equal to 1?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 9SGR
Related questions
Question
C is the one I have incorrect
Transcribed Image Text:Answer the following questions about the relationships between pairs of variables and the values of r, the sample correlation
be the correct answer for more than one question.
(a) Which data set indicates the strongest negative linear relationship between its
two variables?
the x, y data set
(b) For which data set is the sample correlation coefficient r dosest to 0?
the w, t data set
|(c) For which data set is the sample correlation coefficient r equal to 1?
the m, n data set
(d) Which data set has an apparent negative, but not perfect, linear relationship
between its two variables?
the x, y data set
Explanation
Recheck
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Transcribed Image Text:(c): Your answer is incorrect.
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
1.0 7.4
11-
10+
1.0
1.0
10-
2.0 9.1
3.0 7.2
4.0 5.1
2.0
2.0
7+
3.0 3.0
7-
64
4.0
4.0
5.0 7.6
5+
5+
4-
5.0
5.0
6.0 5.0
6.0 6.0
7.0 4.1
7.0
7.0
2.
80 72
1- X
8.0 8.0
9.0 6.3
e 10 I1
17
10 11
9.0
9.0
10.0 4.1 Figure 1
10.0 10.0 Figure 2
11-
11-
1.0
6.7
10-
1.0 2.6
10-
2.0 9.3
2.0 4.5
9-
3.0 3.9
3.0 3.8
7+
4.0
8.8
4.0 4.7
5-
5.0 4.5
6-
5.0 4.8
6.0 7.3
7.0 6.2
6.0
2.2
3-
2+
1.
7.0 5.6
8.0 10.3
8.0 7.7
10 11
9.0 6.9
1 2
9 10 11
9.0 4.6
10.0 7.7 Figure 3
|10.0 8.2 Figure 4
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 corTrect answer for more than one question.
Explanation
Recheck
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