3.7.231. Statistics

• $\mathrm{𝚍𝚎𝚟𝚒𝚊𝚝𝚒𝚘𝚗}$,

• $\mathrm{𝚜𝚙𝚛𝚎𝚊𝚍}$.

A constraint representing a function in statistics usually used for obtaining a balanced assignment.