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Why Is a Random Sample of the Sampling Universe So

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Why is a random sample of the sampling universe so important in statistical surveys?


Definitions:

Emotional Stress

A condition of mental strain or tension resulting from demanding circumstances or emotional conflicts, impacting one's feelings and emotional state.

EKG-stress Testing

A diagnostic tool that measures the heart's electrical activity during physical stress to identify heart disorders.

Cardiovascular Disease

A general term for conditions affecting the heart or blood vessels, often related to atheroma or plaque build-up in the arteries.

Metabolic Equivalents

Units used to estimate the amount of energy expended during physical activity, compared to resting metabolic rate.

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