should three time series of a data set be taken as the average when should i take the average of three period for an economic analysis should an economic time series be a normalized why do we take the average of a time series do you normalize an economists three time series why take two time series and take the average should i normalize the three-segment time series when taking the average how many times will the data be normalized? when normalizing three time series, do you take the average is it okay to take an average of several times how to normalize 3 time series how many time series do economists typically take should time series normalize why should an economist take the average? how many time series are normalized should i take the standard of three time series what is an appropriate way to take the average of a time series how many times to normalize when is it appropriate to normalize the average can you normalize the value of 3 time series