Here is a bivariate data set. X y 84.3 98.2 77 78.3 42.5 73.6 97 129.3 59.4 43.7 67.1 39.2 67.2 133.5 52.3 -8.1 65.6 82 56.7 67.3 88.5 115.5 48.8 39.3 55.9 18.7 57.1 45.7 71.7 23.5 Find the correlation coefficient and report it accurate to three decimal places.