METHODS OF DATA COLLECTION
CONCEPT OF SAMPLING AND OTHER CONCEPTS RELATED TO SAMPLING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Time consuming
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Can still be unrepresentative
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Volunteer bias
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Cheap
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Detailed explanation-1: -There is the risk of creating statistically inadequate samples-a sample that is too small to accurately represent a target population. This type is usually used when a target population is spread over a wide area.
Detailed explanation-2: -Hence, the results obtained are comparatively more representative of the population characteristics. Sometimes random sampling produces unrepresentative samples. This happens when only a specific part of the population gets selected in the sample.
Detailed explanation-3: -A random sample is a group or set chosen from a larger population-or group of factors of instances-in a random manner that allows for each member of the larger group to have an equal chance of being chosen. A random sample is meant to be an unbiased representation of the larger population.