Here is a bivariate data set. x y 52 86.3 17.5 76.4 32 77.7 33.6 77.9 26.6 77 13.7 74.5 28 77.1 28.9 77.1 32.6 78.7 39.1 81.7 5.9 68.6 Find the correlation coefficient and report it accurate to three decimal places. r = What proportion of the variation in y can be explained by the variation in the values of x? Report answer as a percentage accurate to one decimal place. R² = %

MATLAB: An Introduction with Applications
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Here is a bivariate data set.

x y
52 86.3
17.5 76.4
32 77.7
33.6 77.9
26.6 77
13.7 74.5
28 77.1
28.9 77.1
32.6 78.7
39.1 81.7
5.9 68.6


Find the correlation coefficient and report it accurate to three decimal places.
r = 

What proportion of the variation in y can be explained by the variation in the values of x? Report answer as a percentage accurate to one decimal place.
R² = %

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