How do I find the mean

Take all of the numbers and divide by the amount of numbers added.

Step-by-step explanation:

Here's an example data set-

(13, 14, 5, 6, 7)

You take all the numbers and add them

13 + 14 + 5 + 6 + 7 = 45

And then divide it by the amount of numbers, so 5

45/5 = 9

And that's the mean!

You add all of the numbers you have together then divide it by the number of numbers you added together