Summarize the dataset by finding its measures of center—mean, median, and mode. 20, 30, 32, 16, 31, 32, 13, 20, 28, 32, 15, 18, 20, 21, 32 (1 point) Responses mean: 24; median: 24.5; mode: 20 mean: 24; median: 24.5; mode: 20 mean: 24; median: 21; mode: 32 mean: 24; median: 21; mode: 32 mean: 21; median: 24; mode: 32 mean: 21; median: 24; mode: 32 mean: 22.5; median: 21; mode: 20