Instruction 2-6
a Sample of 200 Students at a Large

question 91

Multiple Choice

Instruction 2-6
A sample of 200 students at a large university was taken after the final exam to ask them whether they went out on the weekend before the exam or spent the weekend studying,and whether they did well or poorly on the exam.The following table contains the result.
$$\begin{array} { | l | l | l | } \hline & \text { Did Well on Exam } & \text { Did Poorly on Exam } \\\hline \text { Studying for Exam } & 80 & 20 \\\hline \text { Went out on the weekend } & 30 & 70 \\\hline\end{array}$$
-Referring to Instruction 2-6,if the sample is a good representation of the population,we can expect ________ percent of those who did poorly on the exam to have spent the weekend studying.

• A)22.22
• B)50
• C)45
• D)10

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Definitions:

Income

Payments that are regularly collected from employment activities or the investment of funds.

Public Entertainment

Activities designed for the enjoyment of the public, often provided by the government or community organizations, such as concerts or parades.

Dominant Strategy

A strategy in game theory that is the best for a player, regardless of what strategies other players follow.

Wealth

The abundance of valuable resources or material possessions one owns or has control over.