Nanette Must Pass Through Three Doors as She Walks from Her

question 70

Multiple Choice

Nanette must pass through three doors as she walks from her company's foyer to her office. Each of these doors may be locked or unlocked. Let C be the event that at least two doors are in the same condition. List the outcomes of C.
[Let "L" designate "locked" and "U" designate "unlocked".]

• A) {LLL, UUU, LLU, LUL, ULL}
• B) {LLU, LUL, ULL, LUU, ULU, UUL}
• C) {LLL, LLU, LUL, LUU, ULL, ULU, UUL, UUU}
• D) None of these.

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Definitions:

NAFTA

The North American Free Trade Agreement, a treaty entered into by the United States, Canada, and Mexico; it aimed at eliminating trade barriers between the three countries.

Multilateral Approach

A strategy involving multiple countries working together on a given issue or project, often used in international relations, trade agreements, and environmental policies.

Free Trade

A financial strategy that permits the trade of goods and services across borders without significant restrictions, tariffs, or bans.

Free Trade

The unrestricted purchase and sale of goods and services between countries without the imposition of constraints such as tariffs, duties, and quotas.