Description: This paper restates formulae from three textbooks for the Society of Actuaries Course 161 examination which do not use the same set of notation into a common notation. From the Actuarial Research Clearing House 1989, Vol. 2. From the Actuarial Research Clearing House ARCH 1989 Vol. 2.

Description: This article presents the needed mathematical techniques and obtains values for active life expectancies in which dependent lives are followed after regaining independence. Secondly, projections of active life expectancies are developed to the year 2080, under three sets of assumptions, for 65 year old men and women. Finally, estimates of the average numbers of years of dependency in ADL prior to death of 65 year old men and women are provided under alternate sets of assumptions. From the Actuarial Research Clearing House 1991 VOL. 2.