名词解释
计数资料，无序变量的分析，应先分类汇总，计算观察单位数，编制分类资料频数表，又称计数资料。
截尾值(censored data)
名词解释截尾值(censored data)
人流活产比(ratio of induced abortion and live birth)
名词解释人流活产比(ratio of induced abortion and live birth)
剩余平方和(residual of square)
名词解释剩余平方和(residual of square)
