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Biology
Vital index of a population is
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Q. Vital index of a population is
NTA Abhyas
NTA Abhyas 2022
A
$\frac{\text{B}}{\text{D}} \times 1 0 0$
B
$\text{B} \, - \, \text{D}$
C
$\frac{\text{D}}{\text{E}} \times 1 0 0$
D
$\text{B} \, + \, \text{D}$
Solution:
Vital index is the ratio of births to deaths within a population during a given time. i.e., $\frac{\text{B}}{\text{D}} \times 1 0 0$