Here are the blood pressure readings for Dr. Jackson’s patients yesterday. The systolic blood pressure numbers (top numbers) are given. Which measure of variability—MAD or IQR—best represents the shape of the distribution? Enter 1 for MAD or 2 for IQR. 70, 79, 82, 90, 96, 110, 120, 134, 139, 142, 148, 150, 152, 155, 161