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

question 7

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

---

Definitions:

American Neutrality

The policy or stance of the United States regarding its non-involvement or impartiality in the conflicts and wars between other nations, particularly notable in the early 20th century.

Theodore Roosevelt

The 26th President of the United States (1901–1909), known for his progressive policies and conservation efforts.

Meuse-Argonne Campaign

A major part of the final Allied offensive of World War I that stretched along the entire Western Front, it was one of the largest and bloodiest operations of the war for American forces.

German Offensive

Military operations conducted by Germany, often referring to campaigns during World War I or World War II.