IAS (Admin.) Mains Geography Population and Settlement Geography-Demographic Attributes Study Material (Page 1 of 2)
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Demographic Attributes: Age-Sex Pyramid- Types of Population Pyramid, Factors Affecting Shape of Pyramid
Introduction
Population composition includes spatial variations of age, sex, marital status, occupation, nationality, language, family size, and religion. It is depicted by population pyramids. For example, the age-sex pyramid.
Age-Sex Pyramid
Bar graph depicts age and sex distribution of population called as age-sex pyramid. It has two back-to-back bar graphs, with population plo…
… (510 more words, 19 figures) …
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Demographic Attributes: Sex Composition- Types of Sex Ratio, Factors Affecting Sex Ratio
Sex Composition
It is generally depicted by number of males per 1000 females or vice versa. If is female population, is male population and is total population then sex ratio can be represented as:
- For example, in Russia it is defined as or
… (52 more equations, 11 figures) …
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