Distribution normale N(0, 1)

Lecture de la table

X désignant une variable aléatoire normale d'espérance 0 et d'écart-type 1, c'est-à-dire une variable aléatoire normale centrée réduite, on peut lire dans la table ci-dessous, par exemple, que

P(X ≤ -1) = 15.8655 % P(X ≤ 1) = 84.1345 %

Interprétation

Au moyen de la règle

P(a < X ≤ b) = P(X ≤ b) - P(X ≤ a)

on peut déduire, par exemple, que

P(-1 < X <= 1) = (84.1345 %) - (15.8655 %) = 68.269 %

-4. → 0.000 032	-3.99 → 0.000 033	-3.98 → 0.000 034
-3.97 → 0.000 036	-3.96 → 0.000 037	-3.95 → 0.000 039
-3.94 → 0.000 041	-3.93 → 0.000 042	-3.92 → 0.000 044
-3.91 → 0.000 046	-3.9 → 0.000 048	-3.89 → 0.000 05
-3.88 → 0.000 052	-3.87 → 0.000 054	-3.86 → 0.000 057
-3.85 → 0.000 059	-3.84 → 0.000 062	-3.83 → 0.000 064
-3.82 → 0.000 067	-3.81 → 0.000 069	-3.8 → 0.000 072
-3.79 → 0.000 075	-3.78 → 0.000 078	-3.77 → 0.000 082
-3.76 → 0.000 085	-3.75 → 0.000 088	-3.74 → 0.000 092
-3.73 → 0.000 096	-3.72 → 0.000 1	-3.71 → 0.000 104
-3.7 → 0.000 108	-3.69 → 0.000 112	-3.68 → 0.000 117
-3.67 → 0.000 121	-3.66 → 0.000 126	-3.65 → 0.000 131
-3.64 → 0.000 136	-3.63 → 0.000 142	-3.62 → 0.000 147
-3.61 → 0.000 153	-3.6 → 0.000 159	-3.59 → 0.000 165
-3.58 → 0.000 172	-3.57 → 0.000 178	-3.56 → 0.000 185
-3.55 → 0.000 193	-3.54 → 0.000 2	-3.53 → 0.000 208
-3.52 → 0.000 216	-3.51 → 0.000 224	-3.5 → 0.000 233
-3.49 → 0.000 242	-3.48 → 0.000 251	-3.47 → 0.000 26
-3.46 → 0.000 27	-3.45 → 0.000 28	-3.44 → 0.000 291
-3.43 → 0.000 302	-3.42 → 0.000 313	-3.41 → 0.000 325
-3.4 → 0.000 337	-3.39 → 0.000 349	-3.38 → 0.000 362
-3.37 → 0.000 376	-3.36 → 0.000 39	-3.35 → 0.000 404
-3.34 → 0.000 419	-3.33 → 0.000 434	-3.32 → 0.000 45
-3.31 → 0.000 466	-3.3 → 0.000 483	-3.29 → 0.000 501
-3.28 → 0.000 519	-3.27 → 0.000 538	-3.26 → 0.000 557
-3.25 → 0.000 577	-3.24 → 0.000 598	-3.23 → 0.000 619
-3.22 → 0.000 641	-3.21 → 0.000 664	-3.2 → 0.000 687
-3.19 → 0.000 711	-3.18 → 0.000 736	-3.17 → 0.000 762
-3.16 → 0.000 789	-3.15 → 0.000 816	-3.14 → 0.000 845
-3.13 → 0.000 874	-3.12 → 0.000 904	-3.11 → 0.000 935
-3.1 → 0.000 968	-3.09 → 0.001 001	-3.08 → 0.001 035
-3.07 → 0.001 07	-3.06 → 0.001 107	-3.05 → 0.001 144
-3.04 → 0.001 183	-3.03 → 0.001 223	-3.02 → 0.001 264
-3.01 → 0.001 306	-3. → 0.001 35	-2.99 → 0.001 395
-2.98 → 0.001 441	-2.97 → 0.001 489	-2.96 → 0.001 538
-2.95 → 0.001 589	-2.94 → 0.001 641	-2.93 → 0.001 695
-2.92 → 0.001 75	-2.91 → 0.001 807	-2.9 → 0.001 866
-2.89 → 0.001 926	-2.88 → 0.001 988	-2.87 → 0.002 052
-2.86 → 0.002 118	-2.85 → 0.002 186	-2.84 → 0.002 256
-2.83 → 0.002 327	-2.82 → 0.002 401	-2.81 → 0.002 477
-2.8 → 0.002 555	-2.79 → 0.002 635	-2.78 → 0.002 718
-2.77 → 0.002 803	-2.76 → 0.002 89	-2.75 → 0.002 98
-2.74 → 0.003 072	-2.73 → 0.003 167	-2.72 → 0.003 264
-2.71 → 0.003 364	-2.7 → 0.003 467	-2.69 → 0.003 573
-2.68 → 0.003 681	-2.67 → 0.003 793	-2.66 → 0.003 907
-2.65 → 0.004 025	-2.64 → 0.004 145	-2.63 → 0.004 269
-2.62 → 0.004 396	-2.61 → 0.004 527	-2.6 → 0.004 661
-2.59 → 0.004 799	-2.58 → 0.004 94	-2.57 → 0.005 085
-2.56 → 0.005 234	-2.55 → 0.005 386	-2.54 → 0.005 543
-2.53 → 0.005 703	-2.52 → 0.005 868	-2.51 → 0.006 037
-2.5 → 0.006 21	-2.49 → 0.006 387	-2.48 → 0.006 569
-2.47 → 0.006 756	-2.46 → 0.006 947	-2.45 → 0.007 143
-2.44 → 0.007 344	-2.43 → 0.007 549	-2.42 → 0.007 76
-2.41 → 0.007 976	-2.4 → 0.008 198	-2.39 → 0.008 424
-2.38 → 0.008 656	-2.37 → 0.008 894	-2.36 → 0.009 137
-2.35 → 0.009 387	-2.34 → 0.009 642	-2.33 → 0.009 903
-2.32 → 0.010 17	-2.31 → 0.010 444	-2.3 → 0.010 724
-2.29 → 0.011 011	-2.28 → 0.011 304	-2.27 → 0.011 604
-2.26 → 0.011 911	-2.25 → 0.012 224	-2.24 → 0.012 545
-2.23 → 0.012 874	-2.22 → 0.013 209	-2.21 → 0.013 553
-2.2 → 0.013 903	-2.19 → 0.014 262	-2.18 → 0.014 629
-2.17 → 0.015 003	-2.16 → 0.015 386	-2.15 → 0.015 778
-2.14 → 0.016 177	-2.13 → 0.016 586	-2.12 → 0.017 003
-2.11 → 0.017 429	-2.1 → 0.017 864	-2.09 → 0.018 309
-2.08 → 0.018 763	-2.07 → 0.019 226	-2.06 → 0.019 699
-2.05 → 0.020 182	-2.04 → 0.020 675	-2.03 → 0.021 178
-2.02 → 0.021 692	-2.01 → 0.022 216	-2. → 0.022 75
-1.99 → 0.023 295	-1.98 → 0.023 852	-1.97 → 0.024 419
-1.96 → 0.024 998	-1.95 → 0.025 588	-1.94 → 0.026 19
-1.93 → 0.026 803	-1.92 → 0.027 429	-1.91 → 0.028 067
-1.9 → 0.028 717	-1.89 → 0.029 379	-1.88 → 0.030 054
-1.87 → 0.030 742	-1.86 → 0.031 443	-1.85 → 0.032 157
-1.84 → 0.032 884	-1.83 → 0.033 625	-1.82 → 0.034 38
-1.81 → 0.035 148	-1.8 → 0.035 93	-1.79 → 0.036 727
-1.78 → 0.037 538	-1.77 → 0.038 364	-1.76 → 0.039 204
-1.75 → 0.040 059	-1.74 → 0.040 93	-1.73 → 0.041 815
-1.72 → 0.042 716	-1.71 → 0.043 633	-1.7 → 0.044 565
-1.69 → 0.045 514	-1.68 → 0.046 479	-1.67 → 0.047 46
-1.66 → 0.048 457	-1.65 → 0.049 471	-1.64 → 0.050 503
-1.63 → 0.051 551	-1.62 → 0.052 616	-1.61 → 0.053 699
-1.6 → 0.054 799	-1.59 → 0.055 917	-1.58 → 0.057 053
-1.57 → 0.058 208	-1.56 → 0.059 38	-1.55 → 0.060 571
-1.54 → 0.061 78	-1.53 → 0.063 008	-1.52 → 0.064 255
-1.51 → 0.065 522	-1.5 → 0.066 807	-1.49 → 0.068 112
-1.48 → 0.069 437	-1.47 → 0.070 781	-1.46 → 0.072 145
-1.45 → 0.073 529	-1.44 → 0.074 934	-1.43 → 0.076 359
-1.42 → 0.077 804	-1.41 → 0.079 27	-1.4 → 0.080 757
-1.39 → 0.082 264	-1.38 → 0.083 793	-1.37 → 0.085 343
-1.36 → 0.086 915	-1.35 → 0.088 508	-1.34 → 0.090 123
-1.33 → 0.091 759	-1.32 → 0.093 418	-1.31 → 0.095 098
-1.3 → 0.096 8	-1.29 → 0.098 525	-1.28 → 0.100 273
-1.27 → 0.102 042	-1.26 → 0.103 835	-1.25 → 0.105 65
-1.24 → 0.107 488	-1.23 → 0.109 349	-1.22 → 0.111 232
-1.21 → 0.113 139	-1.2 → 0.115 07	-1.19 → 0.117 023
-1.18 → 0.119	-1.17 → 0.121	-1.16 → 0.123 024
-1.15 → 0.125 072	-1.14 → 0.127 143	-1.13 → 0.129 238
-1.12 → 0.131 357	-1.11 → 0.133 5	-1.1 → 0.135 666
-1.09 → 0.137 857	-1.08 → 0.140 071	-1.07 → 0.142 31
-1.06 → 0.144 572	-1.05 → 0.146 859	-1.04 → 0.149 17
-1.03 → 0.151 505	-1.02 → 0.153 864	-1.01 → 0.156 248
-1. → 0.158 655	-0.99 → 0.161 087	-0.98 → 0.163 543
-0.97 → 0.166 023	-0.96 → 0.168 528	-0.95 → 0.171 056
-0.94 → 0.173 609	-0.93 → 0.176 186	-0.92 → 0.178 786
-0.91 → 0.181 411	-0.9 → 0.184 06	-0.89 → 0.186 733
-0.88 → 0.189 43	-0.87 → 0.192 15	-0.86 → 0.194 895
-0.85 → 0.197 663	-0.84 → 0.200 454	-0.83 → 0.203 269
-0.82 → 0.206 108	-0.81 → 0.208 97	-0.8 → 0.211 855
-0.79 → 0.214 764	-0.78 → 0.217 695	-0.77 → 0.220 65
-0.76 → 0.223 627	-0.75 → 0.226 627	-0.74 → 0.229 65
-0.73 → 0.232 695	-0.72 → 0.235 762	-0.71 → 0.238 852
-0.7 → 0.241 964	-0.69 → 0.245 097	-0.68 → 0.248 252
-0.67 → 0.251 429	-0.66 → 0.254 627	-0.65 → 0.257 846
-0.64 → 0.261 086	-0.63 → 0.264 347	-0.62 → 0.267 629
-0.61 → 0.270 931	-0.6 → 0.274 253	-0.59 → 0.277 595
-0.58 → 0.280 957	-0.57 → 0.284 339	-0.56 → 0.287 74
-0.55 → 0.291 16	-0.54 → 0.294 599	-0.53 → 0.298 056
-0.52 → 0.301 532	-0.51 → 0.305 026	-0.5 → 0.308 538
-0.49 → 0.312 067	-0.48 → 0.315 614	-0.47 → 0.319 178
-0.46 → 0.322 758	-0.45 → 0.326 355	-0.44 → 0.329 969
-0.43 → 0.333 598	-0.42 → 0.337 243	-0.41 → 0.340 903
-0.4 → 0.344 578	-0.39 → 0.348 268	-0.38 → 0.351 973
-0.37 → 0.355 691	-0.36 → 0.359 424	-0.35 → 0.363 169
-0.34 → 0.366 928	-0.33 → 0.370 7	-0.32 → 0.374 484
-0.31 → 0.378 28	-0.3 → 0.382 089	-0.29 → 0.385 908
-0.28 → 0.389 739	-0.27 → 0.393 58	-0.26 → 0.397 432
-0.25 → 0.401 294	-0.24 → 0.405 165	-0.23 → 0.409 046
-0.22 → 0.412 936	-0.21 → 0.416 834	-0.2 → 0.420 74
-0.19 → 0.424 655	-0.18 → 0.428 576	-0.17 → 0.432 505
-0.16 → 0.436 441	-0.15 → 0.440 382	-0.14 → 0.444 33
-0.13 → 0.448 283	-0.12 → 0.452 242	-0.11 → 0.456 205
-0.1 → 0.460 172	-0.09 → 0.464 144	-0.08 → 0.468 119
-0.07 → 0.472 097	-0.06 → 0.476 078	-0.05 → 0.480 061
-0.04 → 0.484 047	-0.03 → 0.488 034	-0.02 → 0.492 022
-0.01 → 0.496 011	0. → 0.5	0.01 → 0.503 989
0.02 → 0.507 978	0.03 → 0.511 966	0.04 → 0.515 953
0.05 → 0.519 939	0.06 → 0.523 922	0.07 → 0.527 903
0.08 → 0.531 881	0.09 → 0.535 856	0.1 → 0.539 828
0.11 → 0.543 795	0.12 → 0.547 758	0.13 → 0.551 717
0.14 → 0.555 67	0.15 → 0.559 618	0.16 → 0.563 559
0.17 → 0.567 495	0.18 → 0.571 424	0.19 → 0.575 345
0.2 → 0.579 26	0.21 → 0.583 166	0.22 → 0.587 064
0.23 → 0.590 954	0.24 → 0.594 835	0.25 → 0.598 706
0.26 → 0.602 568	0.27 → 0.606 42	0.28 → 0.610 261
0.29 → 0.614 092	0.3 → 0.617 911	0.31 → 0.621 72
0.32 → 0.625 516	0.33 → 0.629 3	0.34 → 0.633 072
0.35 → 0.636 831	0.36 → 0.640 576	0.37 → 0.644 309
0.38 → 0.648 027	0.39 → 0.651 732	0.4 → 0.655 422
0.41 → 0.659 097	0.42 → 0.662 757	0.43 → 0.666 402
0.44 → 0.670 031	0.45 → 0.673 645	0.46 → 0.677 242
0.47 → 0.680 822	0.48 → 0.684 386	0.49 → 0.687 933
0.5 → 0.691 462	0.51 → 0.694 974	0.52 → 0.698 468
0.53 → 0.701 944	0.54 → 0.705 401	0.55 → 0.708 84
0.56 → 0.712 26	0.57 → 0.715 661	0.58 → 0.719 043
0.59 → 0.722 405	0.6 → 0.725 747	0.61 → 0.729 069
0.62 → 0.732 371	0.63 → 0.735 653	0.64 → 0.738 914
0.65 → 0.742 154	0.66 → 0.745 373	0.67 → 0.748 571
0.68 → 0.751 748	0.69 → 0.754 903	0.7 → 0.758 036
0.71 → 0.761 148	0.72 → 0.764 238	0.73 → 0.767 305
0.74 → 0.770 35	0.75 → 0.773 373	0.76 → 0.776 373
0.77 → 0.779 35	0.78 → 0.782 305	0.79 → 0.785 236
0.8 → 0.788 145	0.81 → 0.791 03	0.82 → 0.793 892
0.83 → 0.796 731	0.84 → 0.799 546	0.85 → 0.802 337
0.86 → 0.805 105	0.87 → 0.807 85	0.88 → 0.810 57
0.89 → 0.813 267	0.9 → 0.815 94	0.91 → 0.818 589
0.92 → 0.821 214	0.93 → 0.823 814	0.94 → 0.826 391
0.95 → 0.828 944	0.96 → 0.831 472	0.97 → 0.833 977
0.98 → 0.836 457	0.99 → 0.838 913	1. → 0.841 345
1.01 → 0.843 752	1.02 → 0.846 136	1.03 → 0.848 495
1.04 → 0.850 83	1.05 → 0.853 141	1.06 → 0.855 428
1.07 → 0.857 69	1.08 → 0.859 929	1.09 → 0.862 143
1.1 → 0.864 334	1.11 → 0.866 5	1.12 → 0.868 643
1.13 → 0.870 762	1.14 → 0.872 857	1.15 → 0.874 928
1.16 → 0.876 976	1.17 → 0.879	1.18 → 0.881
1.19 → 0.882 977	1.2 → 0.884 93	1.21 → 0.886 861
1.22 → 0.888 768	1.23 → 0.890 651	1.24 → 0.892 512
1.25 → 0.894 35	1.26 → 0.896 165	1.27 → 0.897 958
1.28 → 0.899 727	1.29 → 0.901 475	1.3 → 0.903 2
1.31 → 0.904 902	1.32 → 0.906 582	1.33 → 0.908 241
1.34 → 0.909 877	1.35 → 0.911 492	1.36 → 0.913 085
1.37 → 0.914 657	1.38 → 0.916 207	1.39 → 0.917 736
1.4 → 0.919 243	1.41 → 0.920 73	1.42 → 0.922 196
1.43 → 0.923 641	1.44 → 0.925 066	1.45 → 0.926 471
1.46 → 0.927 855	1.47 → 0.929 219	1.48 → 0.930 563
1.49 → 0.931 888	1.5 → 0.933 193	1.51 → 0.934 478
1.52 → 0.935 745	1.53 → 0.936 992	1.54 → 0.938 22
1.55 → 0.939 429	1.56 → 0.940 62	1.57 → 0.941 792
1.58 → 0.942 947	1.59 → 0.944 083	1.6 → 0.945 201
1.61 → 0.946 301	1.62 → 0.947 384	1.63 → 0.948 449
1.64 → 0.949 497	1.65 → 0.950 529	1.66 → 0.951 543
1.67 → 0.952 54	1.68 → 0.953 521	1.69 → 0.954 486
1.7 → 0.955 435	1.71 → 0.956 367	1.72 → 0.957 284
1.73 → 0.958 185	1.74 → 0.959 07	1.75 → 0.959 941
1.76 → 0.960 796	1.77 → 0.961 636	1.78 → 0.962 462
1.79 → 0.963 273	1.8 → 0.964 07	1.81 → 0.964 852
1.82 → 0.965 62	1.83 → 0.966 375	1.84 → 0.967 116
1.85 → 0.967 843	1.86 → 0.968 557	1.87 → 0.969 258
1.88 → 0.969 946	1.89 → 0.970 621	1.9 → 0.971 283
1.91 → 0.971 933	1.92 → 0.972 571	1.93 → 0.973 197
1.94 → 0.973 81	1.95 → 0.974 412	1.96 → 0.975 002
1.97 → 0.975 581	1.98 → 0.976 148	1.99 → 0.976 705
2. → 0.977 25	2.01 → 0.977 784	2.02 → 0.978 308
2.03 → 0.978 822	2.04 → 0.979 325	2.05 → 0.979 818
2.06 → 0.980 301	2.07 → 0.980 774	2.08 → 0.981 237
2.09 → 0.981 691	2.1 → 0.982 136	2.11 → 0.982 571
2.12 → 0.982 997	2.13 → 0.983 414	2.14 → 0.983 823
2.15 → 0.984 222	2.16 → 0.984 614	2.17 → 0.984 997
2.18 → 0.985 371	2.19 → 0.985 738	2.2 → 0.986 097
2.21 → 0.986 447	2.22 → 0.986 791	2.23 → 0.987 126
2.24 → 0.987 455	2.25 → 0.987 776	2.26 → 0.988 089
2.27 → 0.988 396	2.28 → 0.988 696	2.29 → 0.988 989
2.3 → 0.989 276	2.31 → 0.989 556	2.32 → 0.989 83
2.33 → 0.990 097	2.34 → 0.990 358	2.35 → 0.990 613
2.36 → 0.990 863	2.37 → 0.991 106	2.38 → 0.991 344
2.39 → 0.991 576	2.4 → 0.991 802	2.41 → 0.992 024
2.42 → 0.992 24	2.43 → 0.992 451	2.44 → 0.992 656
2.45 → 0.992 857	2.46 → 0.993 053	2.47 → 0.993 244
2.48 → 0.993 431	2.49 → 0.993 613	2.5 → 0.993 79
2.51 → 0.993 963	2.52 → 0.994 132	2.53 → 0.994 297
2.54 → 0.994 457	2.55 → 0.994 614	2.56 → 0.994 766
2.57 → 0.994 915	2.58 → 0.995 06	2.59 → 0.995 201
2.6 → 0.995 339	2.61 → 0.995 473	2.62 → 0.995 604
2.63 → 0.995 731	2.64 → 0.995 855	2.65 → 0.995 975
2.66 → 0.996 093	2.67 → 0.996 207	2.68 → 0.996 319
2.69 → 0.996 427	2.7 → 0.996 533	2.71 → 0.996 636
2.72 → 0.996 736	2.73 → 0.996 833	2.74 → 0.996 928
2.75 → 0.997 02	2.76 → 0.997 11	2.77 → 0.997 197
2.78 → 0.997 282	2.79 → 0.997 365	2.8 → 0.997 445
2.81 → 0.997 523	2.82 → 0.997 599	2.83 → 0.997 673
2.84 → 0.997 744	2.85 → 0.997 814	2.86 → 0.997 882
2.87 → 0.997 948	2.88 → 0.998 012	2.89 → 0.998 074
2.9 → 0.998 134	2.91 → 0.998 193	2.92 → 0.998 25
2.93 → 0.998 305	2.94 → 0.998 359	2.95 → 0.998 411
2.96 → 0.998 462	2.97 → 0.998 511	2.98 → 0.998 559
2.99 → 0.998 605	3. → 0.998 65	3.01 → 0.998 694
3.02 → 0.998 736	3.03 → 0.998 777	3.04 → 0.998 817
3.05 → 0.998 856	3.06 → 0.998 893	3.07 → 0.998 93
3.08 → 0.998 965	3.09 → 0.998 999	3.1 → 0.999 032
3.11 → 0.999 065	3.12 → 0.999 096	3.13 → 0.999 126
3.14 → 0.999 155	3.15 → 0.999 184	3.16 → 0.999 211
3.17 → 0.999 238	3.18 → 0.999 264	3.19 → 0.999 289
3.2 → 0.999 313	3.21 → 0.999 336	3.22 → 0.999 359
3.23 → 0.999 381	3.24 → 0.999 402	3.25 → 0.999 423
3.26 → 0.999 443	3.27 → 0.999 462	3.28 → 0.999 481
3.29 → 0.999 499	3.3 → 0.999 517	3.31 → 0.999 534
3.32 → 0.999 55	3.33 → 0.999 566	3.34 → 0.999 581
3.35 → 0.999 596	3.36 → 0.999 61	3.37 → 0.999 624
3.38 → 0.999 638	3.39 → 0.999 651	3.4 → 0.999 663
3.41 → 0.999 675	3.42 → 0.999 687	3.43 → 0.999 698
3.44 → 0.999 709	3.45 → 0.999 72	3.46 → 0.999 73
3.47 → 0.999 74	3.48 → 0.999 749	3.49 → 0.999 758
3.5 → 0.999 767	3.51 → 0.999 776	3.52 → 0.999 784
3.53 → 0.999 792	3.54 → 0.999 8	3.55 → 0.999 807
3.56 → 0.999 815	3.57 → 0.999 822	3.58 → 0.999 828
3.59 → 0.999 835	3.6 → 0.999 841	3.61 → 0.999 847
3.62 → 0.999 853	3.63 → 0.999 858	3.64 → 0.999 864
3.65 → 0.999 869	3.66 → 0.999 874	3.67 → 0.999 879
3.68 → 0.999 883	3.69 → 0.999 888	3.7 → 0.999 892
3.71 → 0.999 896	3.72 → 0.999 9	3.73 → 0.999 904
3.74 → 0.999 908	3.75 → 0.999 912	3.76 → 0.999 915
3.77 → 0.999 918	3.78 → 0.999 922	3.79 → 0.999 925
3.8 → 0.999 928	3.81 → 0.999 931	3.82 → 0.999 933
3.83 → 0.999 936	3.84 → 0.999 938	3.85 → 0.999 941
3.86 → 0.999 943	3.87 → 0.999 946	3.88 → 0.999 948
3.89 → 0.999 95	3.9 → 0.999 952	3.91 → 0.999 954
3.92 → 0.999 956	3.93 → 0.999 958	3.94 → 0.999 959
3.95 → 0.999 961	3.96 → 0.999 963	3.97 → 0.999 964
3.98 → 0.999 966	3.99 → 0.999 967	4. → 0.999 968
4.01 → 0.999 97	4.02 → 0.999 971	4.03 → 0.999 972