Digit Ratio Distribution
From a study of 136 males and 137 females:
- Males: mean 0.947, standard deviation 0.029.
- Females: mean 0.965, standard deviation 0.026.
Assuming a normal distribution, the 10th and 90th percentiles for males are 0.910 and 0.984. For females: 0.932 and 0.998.
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