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population age structure
4/23/08
6
Biology
Not Applicable
05/04/2008
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Term
cohort:
 Definition
even age of individuals. ex im in 1988
Term
3 ways to calculate life tables:
 Definition

1.cohort

2.age-at-death

3.static
Term

survivorship curve

 Definition

for a population that has a constant mortality. semi-log axis

y axis is log
Term

cohort life table age=_____, number surving to any age=______

 Definition

x

nx
Term
cohort. calculate probability surviving to any age:
 Definition
lx=nx/no
Term
cohort:calculate a mortality rate:
 Definition
qx=dx/nx
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