ABSTRACT
The time to an event is distinguished from other stochastic processes occurring in time, often expressed as differential equations, by use of the term "point processes." The lognormal has been considered for the distribution of time to solve a problem within a group of people. In applications, the lognormal is used with point process data. Interest is on the timing of events and the probability of one or more events happening by a given time. M. Feinleib was able to quote several references from specialist medical journals where the distribution of duration of survival in several diseases rather closely approximated the lognormal. T. Amemiya and M. Boskin applied the lognormal to the duration of welfare dependency. A State of California survey reported households receiving welfare payments over the period 1965-1970.
