If cells are: a1=90, a2=85, a3=80, a4=75, and a5=75. what will be your formula if you are going to get the average?

The average can be given by the following formula:

Average = (a1 + a2 + a3 + a4 + a5) / (5).

Equivalently.

Average = (ai) / (i).

Where,

i = 1,2,3,4, ..., n

Substituting

Average = (90 + 85 + 80 + 75 + 75) / (5).

Average = 81

answer:

Average = (a1 + a2 + a3 + a4 + a5) / (5).

or

Average = (ai) / (i).

Where,

i = 1,2,3,4, ..., n