Step-by-step explanation:or 3, 19, 9, 7, 27, 4, 8, 15, 3, 11. ... There are 10 total numbers, so the 5th and 6th numbers are used to ... The 2 middle numbers only need to be averaged when the data set ... For instance, if your set has 21, 9, 14, 3, 11, 33, 5, 9, 16, 21, 5, 9, what is the mode?