Table A-23. --Errors in assigning ages of female fur seals from whole canine teeth 



Correct Sample 



age Reader Reading size 2 3 4 5 6 7_ 



Assigned age (years) 



Error 



Years 



No. 



-Number- 



No. Percent 



D 



120 

 120 

 120 

 120 

 120 

 120 

 120 

 120 



112 

 115 

 107 

 106 

 108 

 110 

 112 

 112 



6 



5 



12 



12 



9 



10 



7 



5 



5 

 13 

 14 

 12 

 10 



8 



6.7 

 4. 2 



10. 8 



11. 7 

 10. 



8. 3 

 6.7 

 6.7 



D 



107 

 107 

 107 

 107 

 107 

 107 

 107 

 107 



1 101 



1 105 



1 100 



- 95 



8 89 



1 91 



1 97 



Z 101 



5 

 1 

 6 



12 

 7 



13 

 7 

 4 



6 



2 



7 



12 



18 



16 



10 



6 



5.6 



1. 9 



6. 5 



11.2 



16. 8 



15. 



9. 3 



5.6 



B 



99 

 99 

 99 

 99 

 99 

 99 

 99 

 99 



95 

 93 

 93 

 93 

 87 

 89 

 91 

 93 



4 

 6 

 6 

 6 

 12 

 10 

 8 

 6 



4. 

 6. 1 

 6. 1 

 6. 1 

 12. 1 

 10. 1 

 8. 1 

 6. 1 



D 



100 

 100 

 100 

 100 

 100 

 100 

 100 

 100 



9 



3 



20 



12 



8 



6 



11 



11 



86 

 90 

 74 

 83 

 83 

 87 

 80 

 81 



14 

 10 

 26 

 17 

 17 

 13 

 20 

 19 



14. 

 10. 



26. 

 17. 

 17. 

 13. 

 20. 

 19. 



D 



101 

 101 

 101 

 101 

 101 

 101 

 101 

 101 



26 

 11 

 27 

 23 

 23 

 15 

 29 

 29 



70 

 89 

 69 

 77 

 70 

 83 

 71 

 71 



31 

 12 

 32 

 24 

 31 

 18 

 30 

 30 



30. 7 

 11. 9 



31. 7 

 23.8 

 30.7 

 17.8 

 29.7 

 29. 7 



92 



