Categories
Biology

Demographic Study

Science > Biology > Human Population and Population Control > Demographic Study The word ‘Demography’ is a combination of two Greek words, ‘Demos’ meaning people and ‘Graphy’ meaning science. Thus demography is the science of people.  Demography is the statistical and mathematical study of the size, composition, and spatial distribution of human populations and how […]

Categories
Biology

Attributes of Human Population Part – III

Science > Biology > Human Population and Population Control > Attributes of Human Population Part – III Population fluctuations, biotic potential, and carrying capacity is another set of attributes of the human population. Population Fluctuation: In all populations, numbers rise and fall over time. Once the population has reached equilibrium in a certain region, its […]

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Statistics

Fisher’s Ideal Index Number

Management > Managerial Statistics > Index Number By Fisher’s Method Laspeyre’s method is based on fixed weights of the base year. For price index base year’s quantities are used as weights. Paasche’s method is based on fixed weights of the current year. For price index, current year’s quantities are used as weights. Fisher has suggested […]

Categories
Biology

Attributes of Human Population – Part II

Science > Biology > Human Population and Population Control > Attributes of Human Population Part – II Population growth is the increase in the number of individuals in a population. The growth rate is the number of individuals added per thousand individuals in a given time. The growth rate can be represented by a graph called […]

Categories
Biology

Attributes of Human Population Part – I

Science > Biology > Human Population and Population Control > Attributes of Human Population Part – I Group of individuals of the same species occupying a particular geographic area at a given time and have the capability to breed with each other. The population is a taxonomic category lower than the species. Population share a common […]

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Statistics

Dorbish and Browley’s Method

Management > Managerial Statistics > Index Number By Dorbish and Browley’s Method Laspeyre’s method is based on fixed weights of the base year. For price index base year’s quantities are used as weights. Paasche’s method is based on fixed weights of the current year. For price index, current year’s quantities are used as weights. Dorbish […]

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Statistics

Paasche’s Index Number

Management > Managerial Statistics > Index Number By Paasche’s Method Price Index Number by Paasche’s Method: Paasche’s method is based on fixed weights of the current year. For price index current year’s quantities are used as weights. Steps involved: Denote prices of the commodity in the current year as P1 and its quantity consumed in […]

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Statistics

Lapeyre’s Index Number

Management > Managerial Statistics > Index Number By Larpeyre’s Method When all commodities are not of equal importance, we assign a weight to each commodity relative to its importance and the index number computed from these weights is called a weighted index number. For example, when calculating the price index number if the price of […]

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Statistics

Simple Average of Relative Method

Management > Managerial Statistics > Index Number By Simple Average of Relative Method Simple Average of Relative Method Using Arithmetic Mean: In this method, average of price relative of commodity is calculated. Steps involved Find price relative for each commodity for the current year using the formula R = (P1 / P0) × 100. Add […]

Categories
Statistics

Index Number By Simple Aggregative Method

Management > Managerial Statistics > Index Number By Simple Aggregative Method In Simple Aggregative Method, the total price of commodities in a given (current) year is divided by the total price of commodities in a base year and expressed as a percentage. Steps involved in Simple Aggregative Method: Add the prices of all the commodities […]