平均差 Save Sign in to save words píngjūnchā ㄆㄧㄥˊ ㄐㄩㄣ ㄔㄚ mean deviation math. Character by character 平(píng)surname Ping 均(jūn)equal 差(chā)difference A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0