Example:
One population has X amount of blond people, X amount light brown people, X amount of dark brown and X amount of black haired people. How to calculate the average "lighthair-ness" of that population?
The formula must take all numbers into account and number of blonds must elevate the average more than number of light browns. Likewise the number for black hair must lower the average more than number of dark browns.
One could simply take the ratio of blond vs black, but that does not tell you anything about the ratio of light brown vs dark brown. I was thinking of taking the ratio of both the extreme stages and the middle stages and then and joining it with the ratio of the middle stages by giving the extreme stages twice more importance, but it doesn't seem to work. Also what about if you have more stages or an uneven number of them?
I'm sure there is a formula.
Thanks in advance
One population has X amount of blond people, X amount light brown people, X amount of dark brown and X amount of black haired people. How to calculate the average "lighthair-ness" of that population?
The formula must take all numbers into account and number of blonds must elevate the average more than number of light browns. Likewise the number for black hair must lower the average more than number of dark browns.
One could simply take the ratio of blond vs black, but that does not tell you anything about the ratio of light brown vs dark brown. I was thinking of taking the ratio of both the extreme stages and the middle stages and then and joining it with the ratio of the middle stages by giving the extreme stages twice more importance, but it doesn't seem to work. Also what about if you have more stages or an uneven number of them?
I'm sure there is a formula.
Thanks in advance