Question

Find the mean of the integers.. 5,-7,12,-10,15

Answer 1

3

Explanation:

You can find the mean or average of a group of numbers by adding all the numbers to each other, then dividing the total by how many numbers were there.

In this case, we have 5, -7, 12, -10 and 15

We first add the numbers so 5+(-7)+12+(-10)+15

5+(-7)=-2+12=10+(-10)=0+15=15

Its best to add them one by one in order to not get confused.

Then we divide our total(15) by how many integers were there in the first place

1. 5
2. -7
3. 12
4. -10
5. 15

There were 5 integers so we divide our total(15) by 5

15÷5=3

3 is our mean

Answer 2

3

Explanation:

The mean of some numbers, is the average. You find the average by adding all the numbers up (finding the total) and dividing the total by the amount of number there are, e.g.: Numbers: 4, 5, 6; Average = 15/3 = 5

The total of 5, -7, 12, -10, 15 = 15. Then we divide 15 by 5 to get 3. The average or mean is 3.