From: Distribution of different minutiae in thumbprint and its application to determine sex distinctions
Minutiae | Number of minutiae | Frequency | Probability of densities | Likelihood ratio | Favored ratio | ||||
---|---|---|---|---|---|---|---|---|---|
Male | Female | Male (C) | Female (C′) | C/C′ | C′/C | C | C′ | ||
Ridge ending | 11–20 | 6 (12%) | 4 (8%) | 0.12 | 0.08 | 1.5 | 0.67 | 0.60 | 0.40 |
21–30 | 12 (24%) | 9 (18%) | 0.24 | 0.18 | 1.33 | 0.75 | 0.57 | 0.43 | |
31–40 | 8 (16%) | 19 (38%) | 0.16 | 0.38 | 0.42 | 2.38 | 0.30 | 0.70 | |
41–50 | 15 (30%) | 17 (34%) | 0.30 | 0.34 | 0.88 | 1.13 | 0.47 | 0.53 | |
51–60 | 6 (12%) | 1(2%) | 0.12 | 0.02 | 6 | 0.17 | 0.86 | 0.14 | |
61–70 | 2 (4%) | 0 (0%) | 0.04 | 0 | – | 0 | 1 | 0 | |
71–80 | 1(2%) | 0 (0%) | 0.02 | 0 | – | 0 | 1 | 0 | |
Bifurcation | 1–10 | 1(2%) | 4 (8%) | 0.02 | 0.08 | 0.25 | 4 | 0.20 | 0.80 |
11–20 | 13 (26%) | 22 (44%) | 0.26 | 0.44 | 0.59 | 1.69 | 0.37 | 0.63 | |
21–30 | 17 (34%) | 19 (38%) | 0.34 | 0.38 | 0.89 | 1.12 | 0.47 | 0.53 | |
31–40 | 18 (36%) | 5 (10%) | 0.36 | 0.10 | 3.60 | 0.28 | 0.78 | 0.22 | |
41–50 | 1(2%) | 0 (0%) | 0.02 | 0 | – | 0 | 1 | 0 | |
Convergence | 1–10 | 7 (14%) | 23 (46%) | 0.14 | 0.46 | 0.30 | 3.29 | 0.23 | 0.77 |
11–20 | 30 (60%) | 23 (46%) | 0.60 | 0.46 | 1.30 | 0.77 | 0.57 | 0.43 | |
21–30 | 10 (20%) | 4 (8%) | 0.20 | 0.08 | 2.5 | 0.40 | 0.71 | 0.29 | |
31–40 | 2 (4%) | 0 (0%) | 0.04 | 0 | – | 0 | 1 | 0 | |
41–50 | 1 (2%) | 0 (0%) | 0.02 | 0 | – | 0 | 1 | 0 |