Demography: practice question

A PSM question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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PSM · Demography

Sample item

What is sex ratio commonly expressed as?

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

C. Number of males per 100 females

Sex ratio describes the relative numbers of males and females, often expressed as males per 100 females in a population.

Option by option

  • A. Number of births per woman

    Births per woman is fertility rate.

  • B. Deaths per 1000 population

    Deaths per population is mortality rate.

  • C. Number of males per 100 females (correct)

    Correct: it compares males with females.

  • D. Population older than 65 years

    Older population is age structure.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

More PSM questions

Questions about this PSM question

What is the answer to this PSM question?

The best answer is C, Number of males per 100 females. Sex ratio describes the relative numbers of males and females, often expressed as males per 100 females in a population.

Why is "Number of births per woman" not the answer?

Births per woman is fertility rate.

Why is "Deaths per 1000 population" not the answer?

Deaths per population is mortality rate.

Why is "Population older than 65 years" not the answer?

Older population is age structure.

What concept does this question test?

It tests Demography in PSM. The correct option holds because: Correct: it compares males with females.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Demography?

Practise biostatistics with small calculations until sensitivity, predictive values and risk measures are automatic. Then use the flashcards and the other PSM questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.