Some synonyms.

Replaced "inaccuracy and "uncertainity" by "error" in most places.
Replaced "coefficient" by "parameter".
Replaced [data] point -> sample
Intro edits.
More intro edits.
vector element -> vector component
parameters vector -> parameter vector
learning set -> sample set
Clarified noise matrix/vectors.
Fixes for the Problem Statement chapter.
Better generation algorithm description.
Moved some motivation to intro.
Better stability estimation description.