Esmeralda collected data about the number of compact discs (cds) sold at a music store during part of the 1980s and early 1990s. an equation for the line of best fit for the given data is y = 518x - 43886 where x = 0 means the year 1900. the point (88, 1497) was one of the points. what is the difference between the observed value and the predicted value at x=88?

all group life insurance is term insurance. actually it is annual renewable term and it is rated on the average age and claims experience of the entire group, which is called "experience rating." remember, this type of insurance has a 31-day grace period and is convertible to whole life upon leaving employment. a contributory group plan requires that both the employer and the employees pay part of the premium. at least 75% of those eligible must participate, so the group is sure to get most of the healthy employees as well as those that are sick.

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