Sub: Statistics Topic: Descriptive Statistics
Question:
Calculating the correlation coefficient for the following data
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A researcher selects a random sample of college students and measures the number of hours
they spend watching television per week and their grade point average. The results are as
follows:
X Y
Subject # TV hours GPA
1 50 1.90
2 20 2.20
3 19 2.40
4 10 3.30
5 7 2.90
6 15 2.50
7 5 3.50
8 40 1.95
9 30 2.00
10 2 3.90
Calculate the correlation coefficient and prediction equation.
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