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5 questions
In stratified sampling small group of a total population is known as..........
Strata
Sample
Group
Stratified sampling is a common sampling technique used by ?
Doctors
Teachers
Researchers
When aStratified sampling is used?
to understand the existing relationship between two groups
to understand difference between two groups
to compare two different groups
Using a stratified sample will always achieve
Lesser precision
Greater precision
Very less
One of the most disadvantage of stratified sampling
More coverage of samples
More complex
More difficult to calculate
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