12. Ifyou nd a Pearson's correlation of zero between two continuous variables, this means: a. There is no relationship between the two variables b. There is a strong relationship between the two variables 0. There may be a non-linear relationship between the two variables (1. Two of these answers are correct 13. When the correlation between two variables is +1 or -1, the standard error of the estimate: a. There is not enough information to answer this question b. Can not be 1 0. Must be 1 or-l d. None of these 14. The residual variance, or error variance, is: a. The square root of the standard error of the estimate b. The difference between the Y value and the predicted Y m value c. The square of the standard error of the estimate (1. The average of the deviations about the regression line 15. The following is a regression equation used to predict test scores based on the number of hours spent partying per week. v= -1.75X +153 Derrick spends 42 hours partying per week. Estimate his test score. a. 153 b. 42.5 c. 29.5 d. 79.5