选择题:10、当变量x的值增加时,变量y的值随之下降,则x和y之间存在着( )①正相关关系 ②负相关关系 ③ 题目分类:统计学复习 题目类型:选择题 查看权限:VIP 题目内容: 10、当变量x的值增加时,变量y的值随之下降,则x和y之间存在着( )①正相关关系 ②负相关关系 ③曲线相关关系 ④直线相关关系 参考答案:
, the sales manager began his report with the stat , the sales manager began his report with the statistics of last month’s sales.A 分类:统计学复习 题型:选择题 查看答案