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With an increase in sample size, the variance decreases the nature of changes is not predictable does not change increases In the student group , consisting of round honors, added two students who are studying to grade 3. How will the variance of the exam scores change after that? will remain the same will become negative decrease, remaining positive increase

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With an increase in sample size, the variance decreases the nature of changes is not predictable does not change increases In the student group , consisting of round honors, added two students who are studying to grade 3. How will the variance of the exam scores change after that? will remain the same will become negative decrease, remaining positive increase

With an increase in sample size, the variance decreases the nature of changes is not predictable does not change increases In the student group , consisting of round honors, added two students who are studying to grade 3. How will the variance of the exam scores change after that? will remain the same will become negative decrease, remaining positive increase

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With an increase in sample size, the variance decreases.<br /><br />In the student group, consisting of round honors, added two students who are studying to grade 3. How will the variance of the exam scores change after that?<br /><br />The variance of the exam scores will decrease, remaining positive.
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