A True-False Test of 20 Questions Is Given to 10,000

question 28

Multiple Choice

A true-false test of 20 questions is given to 10,000 students. If all the students guess on each question, how many students would you expect to get 17 or more questions correct?

• A) 0.0013
• B) 11
• C) 13
• D) 0.0011

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Definitions:

Authority

The authority or capability to issue commands, make choices, and ensure compliance.

Responsibility

The state or fact of having a duty to deal with something or of having control over someone, often associated with accountability and ethical obligations.

Obligation

A duty or commitment that one is bound to by law, promise, or moral necessity.

Intermediate Term

A period of time that falls between the short term and the long term, often used to describe financial instruments or investments with maturity periods of 2 to 10 years.