mean

Mean - Mean is the arithmetic avera..

Mean is the arithmetic avera..

Mean is the arithmetic average. To find mean of ungrouped data and it is obtained by adding the raw scores and dividing the sum by the number of items. There are three methods to find mean for a frequency distribution. (i) Direct method, (ii) Short-cu..

Pollution can be anything - which damages the ecosystem and destroys the delicate balance in the ecosystem. Thereby, it creates health hazards to human beings and animals besides damaging the ecosystem. For e.g., industries polluting air has set imbalance in composition of air and made it unworthy ..

Fossil fuels are energy-rich, combustible forms of carbon or compounds of carbon formed by the decomposition of biomass buried under the Earth over millions of year..

Separation of petroleum into simpler fractions after the removal of unwanted material..

Separation of petroleum into simpler fractions after the removal of unwanted material..

The mean deviation of a statistical data is defined as the arithmetic mean of the numerical values of the deviations of items from some average value. Mean deviation is also known as average deviation . The mean deviation is generally den..

Meaning of Heredity - Heredity may be defined as the transmission of characteristics through generations. The characteristics include all physical, physiological and psychological characteristics in organisms. All these characteristics are called the trai..

The mean deviation of a statistical data is defined as the arithmetic mean of the numerical values of the deviations of items from some average value. Mean deviation is also known as average deviation . The mean deviation is generally denoted by M.D. Formula ..