The following list gives the gross federal debt(in millions of dollars) for the U.S. every 5 years from 1945 to 2000: Year Gross Federal Debt ($millions)1945 260,1231950 256,8531955 274,3661960 290,5251965 322,3181970 380,9211975 541,9251980 909,0501985 1,817,5211990 3,206,5641995 4,921,0052000 5,686,338Construct a scatter plot with this data. Do you observe a trend? If so, what type of trend do you observe?Use Excel to fit a linear trend and an exponential trend to the data. Display the models and their respective r^2.Interpret both models. Which model seems to be more approprate and why?

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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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The following list gives the gross federal debt(in millions of dollars) for the U.S. every 5 years from 1945 to 2000:

Year Gross Federal Debt ($millions)

1945 260,123

1950 256,853

1955 274,366

1960 290,525

1965 322,318

1970 380,921

1975 541,925

1980 909,050

1985 1,817,521

1990 3,206,564

1995 4,921,005

2000 5,686,338

Construct a scatter plot with this data. Do you observe a trend? If so, what type of trend do you observe?
Use Excel to fit a linear trend and an exponential trend to the data. Display the models and their respective r^2.
Interpret both models. Which model seems to be more approprate and why?

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