The distribution of 
is normal if the population is normal.
Definitions:
Draining
The act or process of depleting or being depleted of resources or energy.
Inert Substance
A substance that does not undergo chemical reactions under a set of given conditions, often used as a control in experiments.
Placebo
A harmless substance or treatment that has no therapeutic effect, used as a control in testing new drugs.
Relaxant
A substance or drug that reduces tension or strain in muscles, often used to alleviate muscle spasms or to induce relaxation.
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