The next six questions are based on the following data. 
-Create a stem and leaf plot for these data.
Definitions:
Oligopoly
A market structure characterized by a small number of firms dominating the market, leading to competitive yet collusive behavior among the firms.
Mutual Interdependence
A condition in which the actions of one participant in a market or industry significantly affect others, typically seen in oligopolistic markets.
Advertising Expenditures
The amount of money spent on promoting products, services, or brands through various media channels.
Product Differentiation
The process of distinguishing a product or service from others in the market to make it more attractive to a particular target market through unique features, design, or branding.
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