This Jakob Nielsen article is 5+ years old now, but it tends to suggest that someone who could complete that task is actually one standard deviation above avera

This Jakob Nielsen article is 5+ years old now, but it tends to suggest that someone who could complete that task is actually one standard deviation above average, rather than below: https://www.nngroup.com/articles/computer-skill-levels/ https://www.nngroup.com/articles/computer-skill-levels/