Question

how is sex ratio calculated?​

Answer 1

Answer:

Population Ratios

Population ratios are used to describe the degree of balance between two elements of the population, e.g., Males vs. females, children versus women of reproductive age. The ratio is normalized to refer to a standard unit of people, usually 100 persons.

Sex ratio: The sex ratio is the ratio of males to females in the population (normalized to 100). We calculate two sex-ratios: At birth, and in the total population.

The sex ratio at birth is fairly standard, around 105. Due to higher mortality among males, the sex ratio in the total population switches to 95-97. For populations with high levels of sex-selective outmigration

Explanation:

You have been asked to determine if there may be a problem with underreporting of female births in Rajasthan, India. The birth registers for the district show 2456 male births and 2102 female births.

Sex ratio at birth: (2456 / 2102 ) * 100 = 117.

You consult your demographic reference tables and see that this value is far outside the “normal” range for sex ratios, and based on this you determine that...

Answer 2

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Sex ratio is defined as the number of females per 1,000 males in the population. This information is an important social indicator, to measure the extent of equality between males and females in a society, at a given time.

The sex ratio in India has always remained unfavourable for females. The sex ratio of India in 1951 was 946 females per 1,000 males and in 2011, it declined to 945 females per 1,000 males.

$\frac{number \: of \: males \: born \: }{number \: of \: females \: born} \times 100$

$\textit{Hope this helps you}$

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