If the Mean of a Normal Distribution Is Negative

question 76

Multiple Choice

If the mean of a normal distribution is negative,

• A) the standard deviation must also be negative.
• B) the variance must also be negative.
• C) a mistake has been made in the computations, because the mean of a normal distribution cannot be negative.
• D) none of these alternatives is correct.

Analyze factors influencing bank interest rates and their effects on loans and savings.

Distinguish between real and nominal GDP and their relation to money supply growth.

Understand the significance of individual difference variables in psychological research.

Recognize the importance of experiments in establishing causal relationships and the role of the independent variable.

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Definitions:

Worker Turnover

The rate at which employees leave a company and are replaced by new employees, often used as an indicator of workplace satisfaction and stability.

Production Costs

The total expenses incurred in the manufacture of a product or the delivery of a service, including labor, materials, and overhead costs.

Unemployment Data

Statistical information that measures the number of people who are actively seeking work but cannot find employment, reflecting the health of an economy.

Labor-Force Participation

The percentage of the population that is of working age, willing, and able to work, and is either employed or actively seeking employment.