Step by step
The question
Question: find the mean of 6, 7, 8, 5, 9, 7, 6 and 8.
Mean of 6, 7, 8, 5, 9, 7, 6, 8
The mean is the fair share.
We add them all, then share the total equally.
mean: add them all, then ÷ how many
1 Add them all
We add all the numbers, from left to right.
6 + 7 + 8 + 5 + 9 + 7 + 6 + 8
So the total is 56.
total = 56
2 Count them
Now we count the numbers.
There are 8.
how many = 8
3 Share equally
We share the total equally: 56 divided by 8.
mean = 568
56 divided by 8 is 7.
mean = 7
4 Check
Let's check: if every number were 7, 8 of them would make 7 times 8.
That is 56, the total.
So it is right!
7 × 8 = 56
Let's look back.
First: add them all.
Then: count them.
Then: share equally.
Last: check.
Answer
mean = 7