Find the mean of 9, 2, 8, 9, 2 graphically.

Question

What is the sum of the numbers?

Answer 1

To find the mean graphically, we can use a number line.

First, we plot the numbers on a number line:

__ __ 2 __ __ 8 __ __ 9 __ __
1 2 3 4 5

Then, we add up the numbers and divide by the total number of values:

(mean) = (2+2+8+9+9) / 5 = 6

So the mean is 6.

To find the sum of the numbers, we simply add them up:

sum = 9 + 2 + 8 + 9 + 2 = 30