R2 Linear = 0.002 100 80 60 O O O Email hours per week 40 O 20 o y=7.98-0.21*X 10 15 20 Number of brothers and sisters a. Which is the independent variable? Dependent variable? (1pt) b. Based on the equation: Give the value of the intercept? (1pt) c. Value of the slope? (1pt) d. Using the equation: what is the predicted number of e-mail hours per week for a respondent with 4 siblings (1pt) e. Using the equation: what is the predicted number of e-mail hours per week for a respondent with 2 siblings? (1pt) 8f. What is the value for Pearson's r? (1pt) 9