Practice questions Set 4 1. The following data for the dependent variable, y, and the independent variable, x, have been collected using simple random sampling: xy 10 120 14 130 16 170 12 150 20 200 18 180 16 190 14 150 16 160 18 200 a. Construct a scatter plot for these data. Based on the scatter plot, how would you describe the relationship between the two variables? b. Compute the correlation coefficient.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Practice questions Set 4
1. The following data for the dependent variable, y, and
the independent variable, x, have been collected using
simple random sampling:
Xy
10 120
14 130
16 170
12 150
20 200
18 180
16 190
14 150
16 160
18 200
a. Construct a scatter plot for these data. Based on the
scatter plot, how would you describe the relationship
between the two variables?
b. Compute the correlation coefficient.
Transcribed Image Text:Practice questions Set 4 1. The following data for the dependent variable, y, and the independent variable, x, have been collected using simple random sampling: Xy 10 120 14 130 16 170 12 150 20 200 18 180 16 190 14 150 16 160 18 200 a. Construct a scatter plot for these data. Based on the scatter plot, how would you describe the relationship between the two variables? b. Compute the correlation coefficient.
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