7 females to 17 males
I divided both sides by 3
First, we have to find how many different letters does the world alphabet have, we are not going to count the letters that repeat.
It has 7 different letters (not 8, because the letter "A" appears two times.
The formula would be:
That's your answer!
The geometric mean is 29.5804
When x is 100 y will be 122
Percent error is calculated by the know amount minus the amount predicted over the known amount in absolute value so it would be |400-430/400| equaling to .075 which is 7.5% error