平均差

píngjūnchā
(math.) mean deviation

CEDICT

math

Entry Composition

1 平均 píngjūn
  1. average; on average
  2. evenly; in equal proportions
2 差 chā
  1. difference; discrepancy
  2. (math.) difference (amount remaining after a subtraction)
  3. (literary) a little; somewhat; slightly