Let F(t) be the retails sales in billions of dollars in t years since 1995. À 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 12 804 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 OThe function is a good model for the data. What is the value of t in year 2011 ? (Recall that t is the number of years after 1995) Estimate the retails sales in the U. S. in 2011. billions of dollars. (Use the equation F(t) above and estimate to the nearest whole number) Use the model to predict the year in which retails sales will be $236 billion.
Let F(t) be the retails sales in billions of dollars in t years since 1995. À 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 12 804 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 OThe function is a good model for the data. What is the value of t in year 2011 ? (Recall that t is the number of years after 1995) Estimate the retails sales in the U. S. in 2011. billions of dollars. (Use the equation F(t) above and estimate to the nearest whole number) Use the model to predict the year in which retails sales will be $236 billion.
A First Course in Probability (10th Edition)
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Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Transcribed Image Text:pard Lear
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
108.426
6.
141.781
6.
169.256
12
202.297
15
222.266
Let F(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
6.
12
15
804
Use the above scatter plot to decide whether the linear model fits the data well.
The function is not a good model for the data
The function is a good model for the data.
Transcribed Image Text:Let F(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.
F(t)
220
210-
200
190
180
170
160
150
140
130
120
110
100
90
3.
6.
6.
12
15
Use the above scatter plot to decide whether the linear model fits the data well.
OThe function is not a good model for the data
The function is a good model for the data.
What is the value of t in year 2011 ?
(Recall that t is the number of years after 1995)
Estimate the retails sales in the U. S. in 2011.
billions of dollars.
(Use the equation F(t) above and estimate to the nearest whole number)
Use the model to predict the year in which retails sales will be $236 billion.
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