Difference between Random Sampling and Non-random Sampling

There are mainly two methods of sampling which are random and non-random sampling. Random sampling is referred to as that sampling technique where the probability of choosing each sample is equal.

The sample that is chosen randomly is an unbiased representation of the total population. If at all, the sample chosen does not represent the population, it leads to sampling error.

Non-random sampling is a sampling technique where the sample selection is based on factors other than just random chance. In other words, non-random sampling is biased in nature.

Here, the sample will be selected based on the convenience, experience or judgment of the researcher.

Following are some of the points of difference between random sampling and non-random sampling

Random Sampling

Non-random Sampling

Definition

Random sampling is a sampling technique where each sample has an equal probability of getting selected

Non-random sampling is a sampling technique where the sample selected will be based on factors such as convenience, judgement and experience of the researcher and not on probability

Biases involved in Sampling

Random sampling is unbiased in nature

Non-random sampling is biased in nature

Based on

Based on probability

Based on other factors such as convenience, judgement and experience of researcher but, not based on probability

Representation of Population

Random sampling is representative of the entire population

Non-random sampling lacks the representation of the entire population

Chances of Zero Probability

Never

Zero probability can occur

Complexity

Random sampling is the most simple sampling technique

Non-random sampling method is a somewhat complex sampling technique

This was all about the concept of difference between random sampling and non-random sampling, which is important for Commerce students. For more such articles, stay tuned to BYJU’S.

Also Check:

Leave a Comment

Your Mobile number and Email id will not be published. Required fields are marked *

*

*