Exhibit 11-2
Last School Year, the Student Body of a Local

question 54

Multiple Choice

Exhibit 11-2
Last school year, the student body of a local university consisted of 30% freshmen, 24% sophomores, 26% juniors, and 20% seniors. A sample of 300 students taken from this year's student body showed the following number of students in each classification.
$\begin{array}{ll}\text { Freshmen } & 83 \\\text { Sophomores } & 68 \\\text { Juniors } & 85 \\\text { Seniors } & 64\end{array}$ We are interested in determining whether or not there has been a significant change in the classifications between the last school year and this school year.
-Refer to Exhibit 11-2. The expected frequency of seniors is

• A) 60
• B) 20%
• C) 68
• D) 64

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Definitions:

Single Peaked

A type of preference or opinion that, when graphed, shows a single top or highest preference, typically used in voting theory to describe voters' preferences over various issues.

Public Goods

Goods that are non-excludable and non-rivalrous, meaning they can be used by more than one person at a time without depletion of the resource.

Pairwise Majority Voting

A voting system where each option is matched against every other option in separate votes, and the one winning the most matches is chosen.

Single Peaked

A term used to describe preferences or utility functions that increase to a highest point (the peak) and then decrease, indicating a clear optimal choice or outcome.