Find the mean, median, and mode of the data set. Round to the nearest tenth.

15, 13, 9, 9, 7, 1, 11, 10, 13, 1, 13

Mean: (15+13+9+9+7+1+11+10+13+1+13)/11 = 11

Median: arrange the numbers in ascending order: 1, 1, 7, 9, 9, 10, 11, 13, 13, 13, 15
The median is the middle number: 10
Mode: 13