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Stratified Sampling: If the population from which a sample is to be drawn does not constitute a homogenous group, then stratified sampling technique is applied so as to obtain a representative sample. In this techniques the population is stratified into a number of non overlapping subpopulations or strata and sample items are selected from each stratum. If the items selected from each stratum is based on simple random sampling the entire procedure first stratification and the simple random sampling is known as stratified random sampling.
The study of radioactive disintegrations indicates the emission of alpha, beta and gamma particles/rays to be of nuclear origin. Further, study of artificial radioactivity has reve
FUNCTION SIMPLE AGGREGATIVE, SIMPLE RELATIVE
16 people to line-up ( 12 boys 4 girls). in how many ways could they line-up with all 4 girls in last (anyorder)?
#A________variable is a variable whose values are countable.
Bonded warehouse is a storage area under Customs authority that is imported dutiable goods on which duty is unpaid and these are stored. Once the duty & other charges are paid the
According to de Broglie hypothesis and Heinsberg’s uncertainty principle, if and electron is to exist inside the nucleus, it should posses energy ranging from 20 MeV to 200 MeV. B
Financial evaluation of projects The net provide value of a venture is the provide value of future repayments reduced by the provide value of expenditures. The amount of lower pric
.A study of long term phone calls made from general electricss corporate headquarters in fairfeild, conneticuit, revealed the length of the calls, in minutes follows the normal pro
Allocation surrounding to accounts An aspect of a lump-sum appropriation that is specific for expenses by particular government models and/or for particular requirements, actions,
THE SIGNIFICANCE OF DATA EDITING
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