Use the at Least Once Rule to Find the Indicated

question 58

Multiple Choice

Use the at least once rule to find the indicated probability.
-An unprepared student makes random guesses on all questions of her multiple choice test. If there are 14 questions and each question has 6 possible answers, what is the probability she will answer
At least one question correctly?

• A)0.922
• B)0.016
• C)0.884
• D)0.078

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Definitions:

Shortage

The amount by which the quantity demanded of a product exceeds the quantity supplied at a particular (below-equilibrium) price.

Market

Any institution or mechanism that brings together buyers (demanders) and sellers (suppliers) of a particular good or service.

Majority Voting

A decision-making process where the choice that gathers more than half of the votes wins, commonly used in democratic elections and organizations.

Public Good

A product or service that is provided without profit to all members of a society, either by the government or a private individual or organization.