对立事件
complementary event The complementary event of $A$ is the event that $A$ does not occur, denoted $\bar{A}$ or $A^c$.
CSCA 数学 考试术语
complementary event The complementary event of $A$ is the event that $A$ does not occur, denoted $\bar{A}$ or $A^c$.
CSCA 数学 考试术语