Comparison of three means of both imprecision and inaccuracy. (A) Plot of three mean imprecisions, ipr_i,x, as functions of the 95 CAR combinations. The values were computed by Eqs. 6a, 7a, and 8a (see Materials and methods). All three means drop similarly if more CARs are included in the fit, indicating that all three means are similarly appropriate for testing the precision of a fit. (B) Plot of the mean inaccuracies, iac_i,x, as functions of the 95 CAR combinations. The values were computed by Eqs. 11a, 12a, and 13a (see Materials and methods). The mean inaccuracies also drop similarly if more CARs are included, suggesting that these three mean inaccuracies are similarly appropriate for testing the accuracy of a fit.