IQ Scores Are Normally Distributed with a Mean of 100

question 113

Multiple Choice

IQ scores are normally distributed with a mean of 100 and a standard deviation of 15.Based on properties of the mathematical normal curve,which one of the following statements is TRUE?

• A)Approximately 90 percent of the scores fall between 85 and 115.
• B)A score of 70 is equally as probable as is a score of 130.
• C)There are more scores above 130 than below 85.
• D)There are more scores above the mean than below the mean.

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Definitions:

International Trade

The exchange of goods and services across national borders, driven by the principle of comparative advantage.

Economic

Pertaining to the production, distribution, and use of income, wealth, and commodities.

Domestically

Pertaining to activities or production within a country's own borders, as opposed to internationally.

Trade Barriers

Measures imposed by governments to regulate or limit international trade, including tariffs, quotas, and import bans.