A related set of data points is called a(n) ________

Prove that K i=1 x?Ci (x ? mi)(m ? mi) = 0. This fact was used in the proof that TSS = SSE + SSB on page 557.

What is wrong with the following code?

```class TVset { private: int screen; bool HiDef; public: TVset( ){}; int Getscreen(int scr); }; int main( ) { TVset myTV; return 0; }``` A. Nothing is wrong with this code. B. the constructor does not initialize private values. C. there is a semi-colon after the class declaration. D. There are no set or get functions.