There are five rows of students seated in a marketing class. The following table shows the number of students in each row and the average score of the most recent test for that row. 
(See the Excel Data File.) What is the average test score for this class?
Definitions:
Economic Theory
Economic theory encompasses models and principles that explain the functioning of economies, markets, and the behavior of economic agents. It seeks to understand how resources are allocated, prices are set, and wealth is distributed.
Demand Curves
Graphical representations showing the relationship between the price of a good and the quantity demanded, typically downward sloping.
Monopolistically Competitive
A scenario where numerous companies compete in the same industry by offering slightly unique products or services, giving consumers choices.
Elastic
Describes a situation in economics where the quantity demanded or supplied of a good changes significantly as its price changes.
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