题目内容
当列联表中的两个变量相互独立时，计算的列相关系数为（ ） 。
查看答案
搜索结果不匹配？点我反馈
更多问题
在列联分析过程中，应注意的问题有哪些？
方差分析和列联表分析的应用有哪些差异？
Work in pairs and complete the sentences.1. The best way to stay healthy, lose weight, and improve your brainpower is to ______________________________________.2. Walking is good for protection against ___________ and has benefits for _______________ as well.3. If you can take a walk in a park or in the countryside, it will provide you with ______________________________________.4. Scientists estimate that walking as little as _________ minutes a day will give greater protection against ill health.5. If you were to buy one piece of equipment to aid your walking programme, it should be a(n) ______________________________________.
不属于肾门的结构是【 】
微信支付 
支付宝支付