The regression line 
has been fitted to the data points (4, 11), (2, 7), and (1, 5).The sum of squares for error will be 10.0.
Definitions:
Opportunity Cost
The cost of forgoing the next best alternative when making a decision, representing the benefits you could have received by taking an alternative action.
Movieplex
A modern movie theater complex featuring multiple screens within a single venue, allowing for the screening of various films simultaneously.
Coupon
A voucher or code that entitles the holder to a discount off a particular product or service, or a certificate of interest payment on a bond.
Marginal Cost
The expense associated with manufacturing or providing an additional unit of an item or service.
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