The table below shows the prices of 8 single handset cordless phones along with their overall score
Question:
a. Calculate the correlation coefficient r between price and overall score. How would you describe the relationship between price and overall score?
b. Use the applet called Correlation and the Scatterplot to plot the eight data points. What is the correlation coefficient shown on the applet? Compare with the value you calculated in part a.
c. Describe the pattern that you see in the scatterplot. What unexpected relationship do you see in the data?
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Step by Step Answer:
a Calculate Then the covariance is The sample standard deviations are ...View the full answer
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Related Book For 
Introduction To Probability And Statistics
ISBN: 9780495389538
13th Edition
Authors: William Mendenhall, Robert J. Beaver, Barbara M. Beaver
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