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

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Definitions:

Officially Unemployed

Officially unemployed refers to individuals who are without a job, actively seeking work, and currently available to take up employment.

Fully Employed Economy

A situation where all available labor resources are being used in the most economically efficient way, with minimal unemployment.

Cyclical Unemployment

Unemployment that results from business cycle fluctuations and the imbalances in supply and demand that arise in the economy over time.

Discouraged Workers

Individuals who are not actively looking for work because they believe no jobs are available for them or there are no jobs for which they would qualify.