It is possible for a sample to have a real,non-zero correlation,even though the correlation for the general population is zero.

Name: It is possible for a sample to have a real,non-zero correlation,even though the correlation for the general population is zero.
Brand: Quizplus
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Quizplus · Accepted Answer

This is due to sampling variability or chance, which can lead to a non-zero correlation in a sample even if there is no correlation in the general population. However, the larger the sample size, the less likely this is to occur.

It Is Possible for a Sample to Have a Real,non-Zero