mini2019-09-14 16:15:31

An analyst is using a statistical package to perform a linear regression between the risk and return from securities in an emerging market country. The original data and intermediate statistics are shown on the right. The value of coefficient of determination for this regression is closest to: A 0.043 B 0.084 C 0.916 D 0.957 平均正确率：50.0% 正确答案：C你的答案： 解析 这道题用计算器计算时，r为0.95676，计算器显示的结果中只有样本标准差，总体标准差，想要计算答案中的方差只能像答案一样一个个代入公式计算吗？