Mrs. Rodriguez randomly surveyed 15 of her ninth grade students on how many hours they spent completing assignments and preparing for assessments last week: 0.5 0.5 1.0 1.5 1.5 1.5 2 2 2.5 3 3 3.5 5 8 10 Which measure of variability—range or IQR—best describes the spread of the dataset? Enter 1 for range or 2 for IQR. (1 point)