Understanding Hair Color Distribution: Blondes, Redheads, and Dark Hair

This question is inherently problematic because it assumes a fixed and mutually exclusive set of hair colors. People can have combinations of these colors, and the definition of each can be subjective. Also, hair color is largely determined by genetics and therefore will be related to ethnicity and geographic location.

Without knowing the specific group of women you are asking about, it is impossible to give a meaningful answer.

To get a realistic ratio, you would need to specify:

* The Population: Where are these women located geographically? What is their ethnic background?

* Definitions: What are you considering "blonde," "redhead," and "dark-haired"?

General Considerations:

* Blonde: Generally less common than dark hair, especially outside of Northern European populations.

* Redhead: The rarest of these hair colors, predominantly found in people of Northern European descent.

* Dark Hair: The most common hair color globally.

In short, I cannot provide a numerical ratio.