问题:
[名词解释] 正交设计(orthogonal design)
问题:
[名词解释] 定群寿命表(cohort life table)
问题:
[名词解释] 剩余平方和(residual of square)
问题:
[名词解释] 人流活产比(ratio of induced abortion and live birth)
问题:
[名词解释] 截尾值(censored data)
问题:
[名词解释] enumeration data
问题:
[名词解释] current life table
问题:
[名词解释] overall survey