[IshKebab]

Bottom 10% are outliers though. Bottom 50% is much more reasonable.

[bryanlarsen]

Treatment of bottom 10% and treatment of bottom 50% are both interesting metrics, but for very different reasons, and they are often contradictory.

The "bottom 50%" is a measure of how well you make it possible for everybody to succeed without extraordinary help.

The "bottom 10%" is a measure of extraordinary help.