Question

Do you not answer if you don’t know this is hard math.

Answer 1

A

Explanation:

very "hard" math, as we did not even have to create it ...

common sense : what is the middle between 2 numbers ? you add the numbers and divide by 2.

and the same happens with many numbers.

the average number of a whole list of numbers is also called the mean value and sometimes the "weighted middle" (because every number pulls the average based on its own size more or less strongly in its direction).

it sums the numbers and divides by the amount of numbers.

if you have for example a fixed monthly income but varying expenses every month, it is important for you to find the average of your expenses to see, if your income is large enough to cover the expenses of your lifestyle overall in the long run.

Answer 2

If your trying to work out the mean it’s every value added up divided by how many values there are so option A is the answer.