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Solved: Draw Your Data!Consider the four data sets shown
Chapter 7, Problem 37AYU(choose chapter or problem)
Draw Your Data! Consider the four data sets shown below.
(a) Compute the linear correlation coefficient for each data set.
(b) Draw a scatter diagram for each data set. Conclude that linear correlation coefficients and scatter diagrams must be used together in any statistical analysis of bivariate data.
Questions & Answers
QUESTION:
Draw Your Data! Consider the four data sets shown below.
(a) Compute the linear correlation coefficient for each data set.
(b) Draw a scatter diagram for each data set. Conclude that linear correlation coefficients and scatter diagrams must be used together in any statistical analysis of bivariate data.
ANSWER:Step 1 of 3
Given,
Data Set 1 |
Data Set 2 |
Data Set 3 |
Data Set 4 |
||||
x |
y |
x |
y |
x |
y |
x |
y |
10 |
8.04 |
10 |
9.14 |
10 |
7.46 |
8 |
6.58 |
8 |
6.95 |
8 |
8.14 |
8 |
6.77 |
8 |
5.76 |
13 |
7.58 |
13 |
8.74 |
13 |
12.74 |
8 |
7.71 |
9 |
8.81 |
9 |
8.77 |
9 |
7.11 |
8 |
8.84 |
11 |
8.33 |
11 |
9.26 |
11 |
7.81 |
8 |
8.47 |
14 |
9.96 |
14 |
8.10 |
14 |
8.84 |
8 |
7.04 |
6 |
7.24 |
6 |
6.13 |
6 |
6.08 |
8 |
5.25 |
4 |
4.26 |
4 |
3.10 |
4 |
5.39 |
8 |
5.56 |
12 |
10.84 |
12 |
9.13 |
12 |
8.15 |
8 |
7.91 |
7 |
4.82 |
7 |
7.26 |
7 |
6.42 |
8 |
6.89 |
5 |
5.68 |
5 |
4.47 |
5 |
5.73 |
19 |
12.50 |