Isn't it the other way out? The logistic curve becomes denser close to 0 and 1. Which makes sense: you will want to tell apart 1 defect per million from 0.01 d

Isn't it the other way out? The logistic curve becomes denser close to 0 and 1. Which makes sense: you will want to tell apart 1 defect per million from 0.01 dpm, and 5-sigma process (99.977%) from 6-sigma (99.99966%), much more than tell apart 30% from 30.001%.