First order the data: 1, 1, 1, 6, 7, 10, 10, 10, 10, 13, 15 the mean is all the numbers added together divided by how many there are, 1 + 1 + 1 + 6 + 7 + 10 + 10 + 10 + 10 + 13 + 15 = 84 84/11 = 7.636364 ≈ 7.6 the median is the number in the middle of the list, count numbers from each end, until you either have one or two left, if one left then its that one, if two left then its half way between the two the median for your set is 10 The mode is the most common number, in your set 10
