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This research, population projection using Geometric Growth model, aimed to determine a particular time a population will double its size and the particular time it will be half of its size. We discover that population changes as time progresses which depends directly on the rate of increase Î» in turn depend on the per capital rate of birth and death through their differences only. When we equate the time the equation will double it self to the time the population will be half of its size, we discover that the Î»=2,which indicate t=1 which implied an increases in population at Î»=2 and a decrease in population at Î»= -2.
Keywords: Population,projection, Geometric model ,population changes, and rate of increase
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