Exam Scores in a Random Sample of Students Were 0

question 59

Multiple Choice

Exam scores in a random sample of students were 0, 50, 50, 70, 70, 80, 90, 90, 90, 100. Which statement is incorrect?

• A)The standard deviation is 29.61.
• B)The data are slightly left-skewed.
• C)The midrange and mean are almost the same.
• D)The third quartile is 90.

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Definitions:

Diuretics

Medications designed to increase urine production, aiding in removing excess fluid from the body.

Mannitol

A type of sugar alcohol used as a medication to reduce pressure in the brain, treat or prevent kidney failure, and as a diuretic.

Lasix

A medication, also known as furosemide, used to treat edema and hypertension by helping the body get rid of excess salt and water.

Therapeutic Level

The concentration range of a drug within the bloodstream that is deemed effective and safe for medical treatment.