A scatterplot of 420 observations on test scores (TestScore) and percentage of students in the district who are English learners (PetEL) is shown in the figure below. Scatterplot of Test Score vs. Percent of English Learners (California School District Data) Test Score 720 700 680 660 640 620 600 0 20 20 30 50 60 70 90 PCEL The scatterplot indicates OA. a weak positive linear relationship between the two variables OB. a moderate positive linear relationship between the two variables C. a weak negative linear relationship between the two variables. OD. a moderate negative inear relationship between the two variables. 4 Which of the following is true? OA. When TestScore is regressed on PctEL, the regression R2 should be less than 0.01% [53] B. When TestScore is regressed on PctEL, the estimate for the true population slope coefficient should be a negative number. OC. When comparing two districts with PctEL, the district with the larger PctEL should be expected to have larger TestScore. OD. The sample covariance should be a positive number