Essentials of Business Analytics 1st Edition by Jeffrey Camm,James Cochran,Michael Fry,Jeffrey Ohlmann ,David Anderson

تمرين 22

The scatter chart in the following figure was created using sample data for profits and market capitalizations from a sample of firms in the Fortune 500.

a. What does this scatter chart indicate about the relationship between profits and market capitalization Discuss.
b. The data used to produce this are contained in the file Fortune500. Calculate the covariance between profits and market capitalization. What does the covariance indicate about the relationship between profits and market capitalization Discuss.
c. Calculate the correlation coefficient between profits and market capitalization. What does the correlations coefficient indicate about the relationship between profits and market capitalization