Question

Results from cluster samples a. are never representative of the population. b. are always representative of...

Results from cluster samples

a.

are never representative of the population.
b.

are always representative of the population.
c.

should never be used to generalize to a population.
d.

should be treated with more caution than results from simple random samples.
Math   Statistics-And-Probability   
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Answer #1

Solution:

Answer is

should be treated with more caution than results from simple random samples.

Option d is correct.

Among all different types of sampling techniques , the cluster sampling is least representative of the population.

In cluster sampling , there is chance of bias. In simple random samples , very less chance of bias.

The tendency of individuals within a cluster is to have similar characteristics and with a cluster sample, there is a chance that the researcher can have an over represented or under represented cluster which can skew the results of the study.

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