In: Statistics and Probability
(1 point) Given the following data set, let xx be the explanatory variable and yy be the response variable.
xx | 5 | 7 | 6 | 2 | 8 | 7 | 8 |
yy | 7 | 4 | 4 | 9 | 3 | 3 | 2 |
(a) If a least squares line was fitted to this data, what
percentage of the variation in the yy would be explained
by the regression line? (Enter your answer as a percent.)
ANSWER: %
(b) Compute the correlation coefficient: r=