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%

---

Definitions:

Organ of Corti

The sensory organ located within the cochlea of the inner ear, responsible for the transduction of sound vibrations into electrical signals.

Pituitary Gland

A small, pea-sized gland located at the base of the brain, crucial in controlling growth, metabolism, and reproductive function.

Endocrine Glands

Glands that secrete hormones directly into the bloodstream to regulate various body functions.

Variety of Hormones

Refers to the diverse group of chemical messengers produced by endocrine glands that regulate bodily functions, including growth, metabolism, and reproduction.