# Correlation coefficient and Regression equation - Correlation & Regression

Document Sample

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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