Costco sells paperback books in their retail stores and wanted to examine the relationship between price and demand.The price of a particular novel was adjusted each week and the weekly sales were recorded in the following table. 
Management would like to use simple regression analysis to estimate weekly demand for this novel using the price of the novel.The coefficient of determination for this sample is equal to ________.
Definitions:
Local Anesthesia
A type of anesthesia used to numb a specific area of the body to prevent pain during surgical procedures or medical interventions.
Anticoagulant
A substance that prevents blood from clotting, used in medical treatment to prevent blood clots.
Vitamin E
A fat-soluble vitamin with antioxidant properties, important for immune function and skin health.
Multivitamin
A supplement that contains a combination of vitamins, and sometimes minerals, to prevent nutrient deficiencies.
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