Question: In an effort to determine whether any correlation exists between the prices of stocks of airlines, an analyst sampled six days of activity of the

In an effort to determine whether any correlation exists between the prices of of airlines, an analyst sampled six days of activity of the stock market. Using the following prices of Delta stock and Southwest stock, compute the coefficient of correlation. Stock prices have been rounded off to the nearest tenth for ease of computation.
Delta ... Southwest
47.6 ... 15.1
46.3 ... 15.4
50.6 ... 15.9
52.6 ... 15.6
52.4 ... 16.4
52.7 ... 18.1

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