I have 2 lists of numbers (with an equal number of numbers in each). Each number is then divided by the number of which it is paired with (by index), and a ratio is received.
I then want to calculate the global average ratio, so I try 2 ways:
- Sum all numbers in each column, and divide one with the other.
- Make an average of all ratios I have received from the calculation above.
Both give me different results.
How could that be? And what would be considered the true global ratio average?
1 : 1 = 1 2 : 1 = 2 3 : 2 = 1.5 4 : 2 = 2 ----------- 1.625 average 10 : 6 = 1.667