Question: In the survey investigations, we work with a representative sample of the population. What does this mean ?: 
 Options:  <1> The sample faithfully reflects the variables that characterize the population and its size is adequate. <2> The conclusions of the study only describe the specific sample and are not generalizable. <3> We obtain incomplete and biased information by the characteristics of the sample. <4> The basic criterion of inclusion in the sample is the accessibility of the participants. <5> The size of the sample should be as close as possible to that of the population.
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