Which method of finding trend is best to eliminate the effect of repetitive short-term variations ?(a) Graphical method(b) Method of least squares(c) Karl Pearson’s method(d) Method of moving average

Which method of finding trend is best to eliminate the effect of repet

1.	Which method of finding trend is best to eliminate the effect of repetitive short-term variations ?(a) Graphical method(b) Method of least squares(c) Karl Pearson’s method(d) Method of moving average
Answer» Correct option is (d) Method of moving average