I the Standard Deviation Is the Positive Square Root of the Variance

question 9

Multiple Choice

i. The standard deviation is the positive square root of the variance. ii. For a symmetrical distribution, the variance is equal to the standard deviation.
iii. If the standard deviation of the ages of a female group of employees is six years and the standard deviation of the ages of a male group in the same plant is ten years, it indicates that there is more spread in the ages of the female employees.

• A) (i), (ii) and (iii) are all correct statements
• B) (i) and, (ii) are correct statements but not (iii).
• C) (i) and, (iii) are correct statements but not (ii).
• D) (i) is a correct statement, but not (ii) or (iii).
• E) (i), (ii) and (iii) are all false statements

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Definitions:

Therapeutic Approach

A method or strategy used in treatment to alleviate or cure diseases, disorders, and various health conditions.

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Abdominal Discomfort

A general term for pain or discomfort felt in the belly area, which can have many causes ranging from indigestion to more serious medical conditions.

Bismuth Subsalicylate

An over-the-counter medication used to treat nausea, heartburn, indigestion, upset stomach, and diarrhea.