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Concept explainers
Use the equation for line of fit for the table shown below for the sales of CDs in million dollar for a particular year and estimate the CD sales in year 2015.
Year | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 |
Sales | 13215 | 12909 | 12044 | 11233 | 11447 | 10520 |
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Answer to Problem 3CYP
The estimated CDs sales in 2015 is 5130.
Explanation of Solution
Given information: The sales of CDs in million dollars for a particular year is shown in the table below.
Year | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 |
Sales | 13215 | 12909 | 12044 | 11233 | 11447 | 10520 |
Graph: The
Calculation: The slope
Now, equation for the line of fit is written as,
The number of CDs sales in 2015 can be calculated by plugging
Chapter 4 Solutions
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