Instruction 4 -Referring to Instruction 4

question 96

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 who went to a pub will do well on the exam?

• A) 30/100 or 30%
• B) (100/200) * (110/200) or 27.50%
• C) 30/200 or 15%
• D) 30/110 or 27.27%

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Definitions:

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A farm owned and operated by a family, typically passed down through generations, as opposed to corporate farms owned by companies.

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A severe worldwide economic downturn that lasted from 1929 until the early 1940s, marked by massive unemployment and deflation.

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A pivotal year during the Great Depression characterized by significant banking crises and the implementation of New Deal policies by President Franklin D. Roosevelt in the United States.