The following table shows retail sales in drug stores in billions of dollars in the U.S. for years since 1995. Year Retail Sales 0 85.851 3 108.426 6 141.781 9 169.256 12 202.297 15 222.266 Let S(t) be the retails sales in billions of dollars in t years since 1995. A linear model for the data is F(t) - 9.44t +84.182. 220 210- 200- 190- 180 170- 160 150- 140- 130 120- 110 100 90- 804 3 6 9 12 Use the above scatter plot to decide whether the linear model fits the data well. O The function is not a good model for the data O The function is a good model for the data. Estimate the retails sales in the U. S. in 2011. billions of dollars. Use the model to predict the year in which retails sales will be $235 billion.
The following table shows retail sales in drug stores in billions of dollars in the U.S. for years since 1995. Year Retail Sales 0 85.851 3 108.426 6 141.781 9 169.256 12 202.297 15 222.266 Let S(t) be the retails sales in billions of dollars in t years since 1995. A linear model for the data is F(t) - 9.44t +84.182. 220 210- 200- 190- 180 170- 160 150- 140- 130 120- 110 100 90- 804 3 6 9 12 Use the above scatter plot to decide whether the linear model fits the data well. O The function is not a good model for the data O The function is a good model for the data. Estimate the retails sales in the U. S. in 2011. billions of dollars. Use the model to predict the year in which retails sales will be $235 billion.
Chapter6: Exponential And Logarithmic Functions
Section6.8: Fitting Exponential Models To Data
Problem 3TI: Table 6 shows the population, in thousands, of harbor seals in the Wadden Sea over the years 1997 to...
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Transcribed Image Text:The following table shows retail sales in drug stores in billions of dollars in the U.S. for years since 1995.
Year
Retail Sales
0
85.851
3
108.426
6
141.781
9
169.256
12
202.297
15
222.266
Let S(t) be the retails sales in billions of dollars in t years since 1995. A linear model for the data is
F(t) - 9.44t +84.182.
220
210-
200-
190-
180
170-
160
150-
140-
130
120-
110
100
90-
804
3
6
9
12
Use the above scatter plot to decide whether the linear model fits the data well.
O The function is not a good model for the data
O The function is a good model for the data.
Estimate the retails sales in the U. S. in 2011.
billions of dollars.
Use the model to predict the year in which retails sales will be $235 billion.
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