Generational projection
A generational projection was a simulation that extrapolated the future growth of a population.

In 2376, The Doctor ran generational projections on his computer in sickbay. Tom Paris mistook it for real data rather than simulated, causing a rumor to spread across  that half of the crew members on deck five had gotten pregnant. Neelix, upon hearing the rumors, asked Chakotay if he could turn Cargo bay 1 into a nursery. 

After Chakotay explained the provenance of the rumor at Kathryn Janeway's request, she commented that "word travels fast on this ship." "Warp 10," Chakotay then agreed. ()

de: Fortpflanzungsprojektion
Mathematics