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The following table shows retail sales in drug stores in billions of dollars in the U.S. for years since 1995. Year 0 3 6 9 12 15 220- 210- 200 190- 180- 170- 160- 150- 140- 130- 120- 110- 100 90 801 Let S(t) be the retails sales in billions of dollars in t years since 1995. A linear model for the data is S(t) = 9.44t + 84.182. Retail Sales 85.851 108.426 141.781 169.256 202.297 222.266 3 6 9 12 15

The following table shows retail sales in drug stores in billions of dollars in the U.S. for years since 1995. Year 0 3 6 9 12 15 220- 210- 200 190- 180- 170- 160- 150- 140- 130- 120- 110- 100 90 801 Let S(t) be the retails sales in billions of dollars in t years since 1995. A linear model for the data is S(t) = 9.44t + 84.182. Retail Sales 85.851 108.426 141.781 169.256 202.297 222.266 3 6 9 12 15

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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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 The function is a good model for the data. 251 Estimate the retails sales in the U. S. in 2016. number. Hint: Subtract 2016 - 1995 to find t.) billions of dollars. (Round to the nearest whole Use the model to predict the year in which retails sales will be $239 billion. state the year. Hint: add t + 1995 to find the year.) (Round down to
Transcribed Image Text: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 The function is a good model for the data. 251 Estimate the retails sales in the U. S. in 2016. number. Hint: Subtract 2016 - 1995 to find t.) billions of dollars. (Round to the nearest whole Use the model to predict the year in which retails sales will be $239 billion. state the year. Hint: add t + 1995 to find the year.) (Round down to
The following table shows retail sales in drug stores in billions of dollars in the U.S. for years since 1995. 220- 210- 200- 190- 180- 170- 160- 150 140- 130 120- 110- 100- Year 0 3 90+ 801 6 9 12 15 Let S(t) be the retails sales in billions of dollars in t years since 1995. A linear model for the data is S(t) = 9.44t + 84.182. Retail Sales 85.851 108.426 141.781 169.256 202.297 222.266 3 6 9 12
Transcribed Image Text:The following table shows retail sales in drug stores in billions of dollars in the U.S. for years since 1995. 220- 210- 200- 190- 180- 170- 160- 150 140- 130 120- 110- 100- Year 0 3 90+ 801 6 9 12 15 Let S(t) be the retails sales in billions of dollars in t years since 1995. A linear model for the data is S(t) = 9.44t + 84.182. Retail Sales 85.851 108.426 141.781 169.256 202.297 222.266 3 6 9 12
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