Table 2. Distribution of self-reported, within-group relations among occupational groups (Questions 4 and 5 in Table 1). Size refers to the number of individuals within respective occupation, Ratio refers to the ratio of observed vs. expected within-group relations based on an assumed random distribution of all relations, Rel/Ind refers to the total number of reported relations to individuals irrespective of their occupation, divided by the number of members within the group, and Rel/Ind in group refers to the number of reported within-group relations divided by the number of group members. The numbers in parentheses represent the probabilities (%) of acquiring a higher ratio, assuming independence between the occupational categories and probability for relational ties. For example, for the within-group ratio of businessmen (0.92), the probability of acquiring a higher ratio would be 64%. Size Ratio obs/exp Rel/Ind Rel/Ind in group Seine Net 16 6.13 (0.0%) 3.1 2.0 Businessmen 27 0.92 (64%) 0.7 0.5 Farmer 8 1.64 (46%) 0.9 0.3 Deep Sea 45 2.79 (0.0%) 3.6 2.7 Gill Net 10 9.20 (0.0%) 3.3 1.8 Middleman 10 5.11 (0.2%) 2.0 1.0 Mean value 2.5 1.4