The University recently sampled five full time students who work off campus in order to look at their GPA and their work schedules. The standard deviation for GPA is 0.91 and the standard deviation for hours worked is 6.78. These sample data are shown as follows: 
Given these data the sample correlation is
Definitions:
Sherman Act
An 1890 United States antitrust law that outlaws monopolistic practices and promotes competition.
Price-fixing
An illegal agreement among competitors to set prices at a certain level, rather than competing naturally in the market.
Tying Contracts
Agreements where the sale of one product (the tying product) is conditioned on the buyer purchasing another product (the tied product).
Antitrust Laws
Legislation aimed at preventing anti-competitive practices, monopolies, and to promote fair competition for the benefit of consumers.
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