Kwan recorded two sets of data.Set 1: 9, 13, 6, 18, 15, 19, 20Median: 15Lower Quartile: 9Upper Quartile: 19Range: 14IQR: 10Set 2: 9, 13, 6, 18, 15, 19, 20, 63Median: 16.5Lower Quartile: 11Upper Quartile: 19.5Range: 57IQR: 8.5One set of data shows an outlier. Which measure of spread was most impacted by the outlier?