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If a frequency distribution is shown in a bar graph, what scale was used to measure the scores?
St. John's Wort
A herbal plant used in the treatment of mild to moderate depression, anxiety, and sleep disorders.
Melatonin
A hormone produced by the pineal gland that regulates sleep-wake cycles.
Chamomile
An herb often used in teas, known for its calming effects and potential benefits for sleep and digestion.
Valerian
A herb often used in alternative medicine as a sedative and sleep aid.
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