Answer:
23
Explanation:
First find the mean. 20 + 12 + 23 + 8 + 17 + 16 = 96 / 6 = 16
Take the highest number and subtract the mean 23 - 16 = 7
Do the same with the lowest 13 - 8 = 5
23 has a distance of 7 from the mean so it will have the greatest absolute deviation.