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TABLE 3-12 Given Below Are the Rating and Performance Scores of 15

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TABLE 3-12
Given below are the rating and performance scores of 15 laptop computers.
TABLE 3-12 Given below are the rating and performance scores of 15 laptop computers. -Referring to Table 3-12, what is the sample covariance between the performance scores and the rating?
-Referring to Table 3-12, what is the sample covariance between the performance scores and the rating?

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