Instruction 4 -Referring to Instruction 4

question 116

Multiple Choice

Instruction 4.2
An alcohol awareness task force at a large Australian university sampled 200 students after the final exam to ask them whether they went out to a pub on the weekend before the exam or spent the weekend studying, and whether they did well or poorly on the exam. The following result was obtained.
$$\begin{array} { | l | l | l | } \hline & \text { Did Well on Exam } & \text { Did Poorly on Exam } \\\hline \text { Studying for Exam } & 80 & 20 \\\hline \text { Went to a pub } & 30 & 70 \\\hline\end{array}$$
-Referring to Instruction 4.2,what is the probability that a randomly selected student did well on the exam or went to a pub on the weekend before the exam?

• A) (80 + 30 + 70) / 200 or 90%
• B) 30/200 or 15%
• C) (80 + 30) / 200 or 55%
• D) (30 + 70) / 200 or 50%

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Definitions:

Cardiac Arrest

A sudden loss of heart function, breathing, and consciousness, often caused by an electrical disturbance in the heart.

Chest Compressions

A lifesaving technique that involves pressing down on a person's chest cavity to help circulate blood when the heart is not beating effectively.

Patent Airway

An airway that is open and clear, allowing for the free passage of air in and out of the lungs.

Cardiac Arrest

A sudden loss of heart function, leading to the cessation of effective blood circulation and requiring immediate medical intervention.