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    Question

    Which of the following statement is true for

    NRR?
    A Normally NRR varies from 0 to 5. Correct Answer Incorrect Answer
    B NRR cannot exceed GRR. Correct Answer Incorrect Answer
    C If NRR = 1, then the female population will exactly replace itself into new generation and population remains constant. Correct Answer Incorrect Answer
    D All of the above Correct Answer Incorrect Answer

    Solution

    The reproduction of the population refers to a change of a generation into a new one. Reproduction is measured by gross reproduction rates or net reproduction rates that generally indicate the ratio between the sizes of the daughter's and mother's generations. The fertility and mortality of the mother's generation before the end of the childbearing age is taken into account in the calculation of the net reproduction rate. In the gross reproduction rate this mortality is not taken into consideration. If the net reproduction rate calculated per one woman is less than one, the daughter's generation is smaller than the mother's generation and the mother's generation has not reproduced itself. Normally NRR varies from 0 to 5 and it cannot exceed GRR. If NRR = 1, then the female population will exactly replace itself into new generation and population remains constant.  

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