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# Difference between Census Method and Sampling Method of Collecting Data

Collection of Data is the first step of the statistical investigation and can be gathered through two different sources, namely, primary sources and secondary sources. Besides primary and secondary sources of collecting data, there are two essential methods of collecting data; i.e., Census Method and Sampling Method.

### What is Census Method?

A method in which an investigator collects data related to the problem under investigation by covering every item of the population or universe is known as the Census Method of Collecting Data. This method is usually preferable when the population size is small, or there are widely diverse items in the population, or the investigation requires intensive examination of different items or a high degree of reliability and accuracy. For example, the Census of the population is the most essential method of statistical inquiry.

### What is Sample Method?

A method in which an investigator collects data about the sample on a group of items that are taken from the population is known as the Sample Method of Collecting Data. The sample is taken from the population because the examination and conclusions for the problem under investigation are drawn on their basis. For example, testing only one or two pulses to check whether the whole container of pulses is boiled or not.

### Difference between Census Method and Sampling Method of Collecting Data

Some principal differences between census and Sampling Methods are as follows:

With the above points of comparison between the Census Method and the Sampling Method of Collecting data, it can be concluded that the latter method is usually preferred over the former method. It is because the Sampling Method is less expensive than the Census Method in terms of time, effort, and money. However, while performing the Sampling Method, it is essential for the investigator to take a sample that represents the characteristics of the population as a whole.

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