根据一组样本数据\((x_{1},y_{1})\),\((x_{2},y_{2})\),\(…\),\((x_{n},y_{n})\)的散点图分析存在线性相关关系,求得其回归方程\(\hat{y}=0.85x-85.7\),则在样本点\((165,57)\)处的残差为\((\) \()\)
进入组卷