when estimating autocorrelation function, the lag-1 acf is what is the autocorrelation function in finite samples which autocorrelation is negatively biased which autocorrelation function is biased in a finite sample what is biased autocorrelation is autocorrelation biased which autocorrelation function is biased for iid is autocorrelation positively biased? when estimating this what is the autocorrelation function is autocorrelation biased how is autocorrelation affected by iid observations which autocorrelation function is negatively biased? why is autocorrelation biased when estimating the autocorrelation function of a time series using finite samples, the estimate is why is the autocorrelation function in univariate arma processes biased? why is the autocorrelation function biased when estimating autocorrelation function why is the autocorrelation function biased what is the lag of the auto correlation function? what is lag-0 autocorrelation?