Question

What is the mean of 13,20,15,20

Answer 1

13,15,20,20

add all of the numbers and divide by how many numbers there are.

13+15= 28

20+20= 40

28+40=68

68

68/4= 17 ,since there are 4 four numbers

Answer : 17

Answer 2

17

Explanation:

all 4 numbers added up, 68, divide by the amount of numbers, which is 4, and you get the answer