258 



PROCEEDINGS OF SECTION G. 



l)irths for the year 1896. This explains why in section 3 mention 

 was made of the necessity for constancy of number of births for 

 fifteen years, to admit of the death records being used for life table 

 purposes without further computation. 



The birth bases so computed are given hereunder : — 



Table II. 



These figures represent approximately the number of births 

 from amongst which the deaths at each of the ages specified, 

 have arisen during the decennium under review. 



5. Probability op Death at Successive Ages. 

 From the figures given in Tables I. and II. may be readily com- 

 puted the probability that a child aged will die before reaching 

 age 1 ; will survive age 1 , but die before reaching age 2 ; will 

 survive age 2, but die before reaching age 3; and so on. These 

 probabilities may be obtained by dividing the items in Table I. by 

 the corresponding items in the Table II. Performing these opera- 

 tions the results are as follows: — 



Table III. 



Probability at Date of Birth of Surviving 

 ii Years and Dying in the 



(n + l)th Year. 

 Commonwealth, 1901-10. 



