which is true that the signal to be extracted is noise? what is b in a multiplication which is used to extract data from a dataset why is point-by-point multiplication used which is the same as the point-by-point multiplication of a dataset? how do the statistics for a signal work what is the difference between a signal and a signal? how to find signal in math how to extract signal from a dataset by statistical analysis what is point by point multiplication? a b what is what is the point-by-point multiplication for noisy signal what is the multiplication used on a dataset what is the mathematical model for the multiplication of a signal into b? what are the parameters of the point by point multiplication algorithm what is the difference between point-by-point multiplication and convolution what means point by point in numerical analysis what is the statistical multiplication of data what is the point by point multiplication? what is a dataset in statistics what is the difference between a and b in statistics