To find the median, look at the middle number (as long as numbers are arranged from least to greatest). To find the mean, we take the average of the numbers. Below are the median and mean of the number sets.
3,3,3,3,3,3,3,3,3,3,3
mean=3
0,10,20,30,40,50,60,70,80,90,100
mean=50
3,9,27,81,243,729,2187
mean≈468.7
6,106,106,206,206,306,306
mean≈177.4