Textbook prices have a seasonal structure on Ebay. At the end of a term, the supply of
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Question:
Textbook prices have a seasonal structure on Ebay. At the end of a term, the supply of used books outstrips demand, and the price is lower. Near the start of a term, many students are looking for books, and the price is higher. Suppose we can classify sales for a particular chemistry textbook into two time periods (start of term and End of term) and "other" time period in the proportions shown in the table below.
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