Question

name two sources of error in data collection. (Please give a answer in short) 1 marks
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Answer 1

Answer:

The main sources of error in the collection of data are as follows :

Due to direct personal interview.

Due to indirect oral interviews.

Information from correspondents may be misleading.

Mailed questionnaire may not be properly answered.

Schedules sent through enumerators, may give wrong information.

Answer 2

Explanation:

There are two types of statistical errors that can occur during the collection of data. Sources of Sampling errors: ... Errors can occur on account of the bias or the discretion of the investigator, they are known as biased sampling errors.

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