这题的知识点在哪讲过啊

NO.PZ202001080100002602 问题如下 Whis the R2,R‾2R^2, \overline\R^2R2,R2, anF statistic of this regression? So, the TSS = 75.797 anthe ESS = 68.598. R2=ESS/TSS=68.598/75.797=90.5%R^2=ESS/TSS=68.598/75.797=90.5\%R2=ESS/TSS=68.598/75.797=90.5%R‾2=1−n−1n−k−1(1−R2)=1−10−110−2−1(1−0.905)=0.878\overline R^2=1-\frac{n-1}{n-k-1}(1-R^2)=1-\frac{10-1}{10-2-1}(1-0.905)=0.878R2=1−n−k−1n−1​(1−R2)=1−10−2−110−1​(1−0.905)=0.878F=(RSSR−RSSU)/qRSSU/(N−kU−1)=(7.58−0.72)/20.72/(10−2−1)=33.47F=\frac{(RSS_R-RSS_U)/q}{RSS_U/(N-k_U-1)}=\frac{(7.58-0.72)/2}{0.72/(10-2-1)}=33.47F=RSSU​/(N−kU​−1)(RSSR​−RSSU​)/q​=0.72/(10−2−1)(7.58−0.72)/2​=33.47 这个F的计算公式需要掌握吗