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Consider the following sample data: 17 13 24 20 27 23 20 20 31 25 a. Calculate the covariance between the variables. (Negative value should be indicated by a minus sign. Round your intermediate calculations to at least 4 decimal places and final answer to 2 decimal places) b. Calculate the correlation coefficient.(Round your intermediate calculations to 4 decimal places and final answer to 2 decimal places.) Correlation coefficient
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17 24 27 20 31 119 13 20 23 20 25 101 Here 6.8 0.2 3.2 3.8 7.2 7.2 0.2 2.8 0.2 4.8 48.96 0.04 8.96 0.76 34.56 93.2 46.24 0.04

a)cov(x, y) Σ(x-x)(y-5) 93.2 5-1 = 23.30 b)r 2 93.2 6 12.8-82.8 2 0.92

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