Esmeralda collected data about the number of compact discs (cds) sold at a music store during part of the 1980s and early 1990s.

Question

4 years ago

15

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?

Mathematics

2 answers:

stealth61 [152] · Answer 1 · 2022-01-26T17:25:04+03:00

Hello there.
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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?
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42,188.

erma4kov [3.2K] · Answer 2 · 2022-01-26T15:46:42+03:00

erma4kov [3.2K]4 years ago

4 0

This is done by solving the question using the linear equation. If x=0 then y = -43,886 udring the year 1900. If x=88, then y=1698. The difference between the observed value and tthe predicted value at the value of x is 42,188.