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A company has data for each of the last eleven months on revenues in millions of...

A company has data for each of the last eleven months on revenues in millions of dollars (2, 2, 3, 5, 6, 5, 4, 7, 5, 8, 8) and expenses in millions of dollars (1, 1, 2, 1, 3, 4, 4, 5, 3, 4, 5). Calculate the covariance between revenues and expenses for this sample. Round your answer to three decimal places.

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