What Is the Proportion of the Total Area Under the Normal

question 47

Multiple Choice

What is the proportion of the total area under the normal curve within plus and minus two standard deviations of the mean?

• A)68%
• B)99.7%
• C)34%
• D)95%

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Definitions:

Economic Profit

The surplus or profit generated by a company after accounting for both explicit and implicit costs, indicating financial performance.

Maximum Earning

The highest possible income or profit that an entity or individual can achieve under given conditions.

Contestable Market

A market in which the costs of entry and exit are low, so a firm risks little by entering. Efficient production and zero economic profits should prevail in a contestable market.

Economic Profits

Profits earned by a firm after accounting for both its explicit and implicit costs, including opportunity costs.