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I find many problems very very tough to do in Casella's probability textbook, which reveals knowledge not covered in his content.
It seems a convention that maths teachers leave the hardest part in problems.
Unfortunately I am not a guy relying on answer manuals.
Geeeeeeeeeeeeeeeeee!
X'(y-Xβ)=0
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Hi George,Y;
Casella's probability textbook,
Which one?
It seems a convention that maths teachers leave the hardest part in problems.
I am forced to agree. I have seen some where the problems are undoable even if you are familiar with the chapter.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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George Casella's
Statistical Inference
I guess it is too hard for my self study
X'(y-Xβ)=0
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X'(y-Xβ)=0
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