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The following data on x = score on a measure of test anxiety and y =...

The following data on x = score on a measure of test anxiety and y = exam score for a sample of n = 9 students are consistent with summary quantities given in a paper. Higher values for x indicate higher levels of anxiety. Compute the value of the correlation coefficient. (Give the answer to four decimal places.)
r =  

x 23 14 14 0 16 19 19 15 20
y 43 60 49 78 50 51 45 51 52

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