测得一组通过随机抽样得到的8名幼儿的智商成绩和阅读能力测验成绩如下:
智力测验成绩:110——120——90——100——140——95——105——115
阅读能力测验:80———85——75——80———90——85——78———88
请计算儿童的智力与推理能力的相关系数。
(积差相关参考公式:
as other true likely networks include help by last who member friend In traditional societies, everyone in the community is related to everyone else, either as biological relatives or in-laws. In post-industrial societies, this is no longer _51 _—we