To find the mean, add all of them up and divide by the number of numbers lol.
8+8+15+13+11+16=71 and 71/6=11.8
TO find the median we put all the numbers in order from least to greatest.
8,8,11,13,15,16, since there is an even number of numbers, we take the middle 2, add them up and divide by 2.
11+13=24/2=12
Mean=11.8
Median=12
-Steel jelly