David Marks Staff asked 4 years ago

How can the stratified

What is sampling, and how can the stratified and convenience sampling methods be explained using examples?

What are the frequency and percentage of the COPD patients in the severe airflow limitation group wh…

What subjective decisions need to be made when planning to conduct a survey using unrestricted sampl…

What does a stem and leaf plot show?

What is meant by an unbiased estimator and what’s an example of it?

To construct a 95% confidence interval estimate of the mean length of all such skulls, what requirem…

 

1 Answers
David Marks Staff answered 4 years ago

Sampling is the technique used for statistical analysis.sampling is concerned with the selection of a subset of individual from within a statistical population to estimate characteristics of whole population.each observation measures one or more properties such as weight,location,color.
stratified sampling is used to increase the randomness of the sample.it is to ensure that any differences diminished by the sampling procedure. For example: The study of a particular class of students can be considered as stratified sampling, because all the students are studying same subjects.
The Convenience sampling technique is used when it is easy to draw the sample. In the convenience sampling, sample is selected because of convenient accessibility. For example: if you want to study the effects of drugs on college going students, you can select few students from any colleges of particular area.