mean = all numbers added together/ amount of numbers
= 115/10
= 11.5
median= middle number when numbers are arranged in order from least to greatest
2,3,5,5,5,5,10,10,20,50
since the amount of numbers is even there is no middle number so you take the two middle numbers and find the average of them.
In this case they are 5 and 5 so you add them and divide by 2 which just gives you 5.
mode= the number that is most common so 5
