The mean is the average of the data. You find it by adding all of your data together, then dividing by the number of data points you have. Example: 4, 1, 5, 1, 6, 5, 3, 6, 5 4 + 1 + 5 + 1 + 6 + 5 + 3 + 6 + 5 = 36 36 ÷ 9 = 4 What is the mean of the following data set? 6, 7, 3, 8, 6, 6, 2, 9, 7