There are six numbers, so the median is the mean of the third and fourth (when ordered).
Median = (14+27)/2 = 41/2 = 20.5
The median of the numbers 10 12 13 17 17 18 27 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
The median is 20, as it is the middle number when they are all listed in order.
13 + 14 = 27