Richard Has Been Given a 12-Question Multiple-Choice Quiz in His

question 2

Multiple Choice

Richard has been given a 12-question multiple-choice quiz in his history class. Each question has four answers, of which only one is correct. Since Richard has not attended the class recently, he doesn't know any of the answers. The success occurs if Richard answers a question correctly and the failure occurs if Richard is unable to answer a question correctly. Assuming that Richard guesses on all 12 questions, find the probability that he will answer no more than 3 questions correctly. Round your answer to the nearest thousandth.

• A)0.258
• B)0.500
• C)0.250
• D)0.649
• E)0.063

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Definitions:

Dopamine

A neurotransmitter involved in many functions, including motivation, reward, and the regulation of movement and emotional responses.

Nicotine

A stimulant drug found in tobacco plants that is highly addictive and affects the nervous system.

Alcohol

A psychoactive substance found in beverages such as beer, wine, and spirits, known for its intoxicating effects.

Reticular Formation

A complex network of nerve pathways in the central nervous system that plays a central role in regulating wakefulness, arousal, and attention.