Section 2.3 Learning Check||Please enter your Full Name:|Your Email Address:|Your ID Number or Password:|An instructor wants to predict the final exam scores of her/his Introduction to Statistics course from their midterm exam scores. Some of the results of her/his analysis given below.

Which of the following holds? # There is an influential observation in the data. %% There is an evidence of negative association between midterm and final exam scores. %% The explanatory variable(y) in the study is the final exam scores. %% There is an influential observation and negative association. %%|For the information given in 1, the fraction of variation in the final exam scores that is explained by the least squares regression line of final exam scores on midterm exam scores is # 0.6900 %% 0.7000 %% 0.4761 %% 0.4900 %%|The following is the scatter plot of the data given in question 1 except the outlier.

What is the predicted value of a student's final exam score, if s/he scored 80 in the midterm exam? # 82 %% 80 %% 2 %% 94 %%|Which one of the following statements is true for the regression results given in question 3? # If the midterm exam score increases 1 point, the predicted increase in the final exam score will be 1 point. %% If the midterm exam score increases 1 point, the predicted increase in the final exam score will be 2 points. %% If the midterm exam score increases 1 point, the predicted increase in the final exam score will be 3 points. %% If the midterm exam score increases 1 point, the predicted increase in the final exam score will be 0.8 points. %%