16+17+21+15+139=208
Order them: 15 16 17 21 21 Find the middle one: 17 That is the median
16
In the example provided, the quartiles are: 25% = 16.5 (the median of {15, 16, 17, 18}) 50% = 18.5 (the median of {15, 16, 17, 18, 19, 20, 21, 22}) 75% = 20.5 (the median of (19, 20, 21, 22})
(21+15+19+28+10+17+9+15+26+14+10+18+24+12+16) / 15 = 16.93 recurring (that is, 16.93333...)
16
40.828
It is 18, the middle number when they are in order.
21, 22 & 23 15, 16, 17 & 18
16, 12+15+21 = 48/3 = 16
the median for 16,16,16,16,16,16,16,16,17,17,17,17,17,17,18,18,18,20,21,25 is 17
22
16.5 is the median.