curve fitting is a very difficult and time wasting method while regrresion is more to use as compare to curve fitting

The Gaussian curve is the Normal distributoin curve, the commonest (and most studied) of statistical distributions.

Contour Map

Curvie fitting is used in mathematics to find a mathematicalmodel that fits your data. The curve fit fins the specific parameters which make that function match your data as closely as possible.

In electronics engineering the only statistical methods that reasonably can be applied are the descriptive methods and least square curve fitting ones.

In all cases the inferential statistical methods should be avoided.

Inferential methods try to retreive a theory from a data set.

Correct science works the other way around.