The median of the numbers 10 12 13 17 17 18 27 is 17.
(10, 12, 13, 17, 17, 18, 27) The median is 17. The mode is 17. The range is 17.
Median = (18+27)/2 = 22.5
14. Put in order: {1, 6, 10, 12, 12, 13, 15, 19, 27, 31, 32, 40} There are 12 data items, so the median is the (12 + 1) ÷ 2 = 61/2th data item. As 61/2 is not a whole number, take the mean average of the 6th and 7th data items: 6th is 13, 7th is 15 ⇒ median = (13 + 15) ÷ 2 = 14
-27
15
32 apex
Median: 25 Mean: 23
13
41
13 - 27 = -14
13 + 14 = 27