Median is the middle number in an ascending ordered (lowest to highest) list. The numbers in the above question are not ordered so you must first order it in ascending order and select the middle number. 8,12,13,14,15,16,17,18 If there are two numbers in the middle, add the numbers and divide the result by 2 to obtain the median. In the ordered list, 14 and 15 are in the middle, hence we add 14 and 15 and divide by 2 to obtain the median. Median =