13. [0.83/1 Points] DETAILS PREVIOUS ANSWERS MENDSTAT1 5 3.2.0205. MY NOTES [ The amount spent on groceries per week (y) and the number of household members (X) are shown below. y $333 $420 $464 $547r $205 $622 IA USE SALT Determine which variable is the independent variable and which is the dependent variable. The independent variable is and the dependent variable is D 'f Calculate the correlation coefcient r. (Round your answer to four decimal places.) r = 0.9733 Calculate the equation of the regression line. (Round your numerical values to two decimal places.) Plot the points and the line on a scatterplot