Fig. 8From: Comparison of the local pivotal method and systematic sampling for national forest inventoriesEmpirical variance ±2 Monte Carlo standard errors of mean volume estimates for LPM simulations utilizing all auxiliary variables (horizontal line segments) and the mean values of the conventional variance estimates (‘srs’; Eq. 6) and the Grafström-Schelin estimates (‘vsb’; Eq. 8) in the whole study region (Full) and its four subregions (see Fig. 1)Back to article page