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Rate of increase (per capita growth rate)
r = b-d/N
Instantaneous Growth
ΔN / Δt = rN
Prediction of a population at a time
Nt+1 = Ntert
Human per capita
r=b-d → r /1000
Logistic growth
N/t = rN(K-N/K)
Half of carrying capacity
½ K
Doubling time
2t = 0.69/r
Net replacement rate
R0 = ∑lxmx
For life table
dx = nx2 - nx1
lx= nx2/ nx1