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Probability Sampling Methods

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Introduction
The assignment gives the idea about the definition of probability and non-probability sampling methods and their types and also discusses about which method is preferred to in research and why that method is taken.
Definition of Probability
Probability is a way of conveying information or belief in different manner about an event that will occur or has occurred.
What is sampling?
Sampling is all about selecting the subset from a larger set of individuals from within a statistical population to estimate features of the whole population.
Probability sampling method
A probability sampling method is any method of sampling that utilizes some form of random selection. It is in which every unit in the population may have chance to get …show more content…

You look at the demographics of your sample participants and grouping has done in terms of their caste. Find that 134 SC and ST, 832 are OBC, and 2034 are others. There are any differences in income one year after harvesting between the different castes subgroups. You also wonder if the demographics of your sample are truly representative of the demographics of Indian village farmers. One way of examining these questions is by using a stratified random sample.
Systematic Sampling
Systematic sampling is a method where the elements selection from an ordered sampling frame. The most common form of systematic sampling is an equal-probability method. Elements have equal probability of selection but combinations of the selected elements have different probabilities.
In systematic random sampling, the researcher first randomly picks the first item or subject from the population. Then, the researcher will select each nth subject from the list.
Example of Systematic Sampling
In a company, to select the employees for particular project this sampling methods can be used. For instance, list the employees of number 200 and give them serial numbers. Then find the beginning numbers and select the intervals for the selection and gather list of employees i.e. required number 20 based on the interval number which is

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