确定直线回归方程必须满足的条件是（）。（多选）—5分 -题库考试答案搜索网

确定直线回归方程必须满足的条件是（）。（多选）—5分

多选题

2021-09-03 17:04

A、现象间确存在数量上的相互依存关系
B、相关系数r必须等于1
C、y与x必须同方向变化
D、现象间着较密切的直线相关关系
E、相关系数r必须大于0

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正确答案

A@#@D

试题解析

标签：弘成河北建筑工程学院财务管理（本科）统计学原理

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