Fig. 2From: Mean and variance of ratios of proportions from categories of a multinomial distributionThe simulation results based on the multinomial distribution given by (n,0.25,0.05,0.7), where n ranges from 120 to 300. For the use of symbols see Fig. 1. Again, the modified ratio model outperforms the Taylor-series model for Z0 data in this case, although the fit is not so close as in Fig. 1. The uncorrected modified ratio model still describes the Z1 data very wellBack to article page