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Math Finite Mathematics with Applications In the Management, Natural, and Social Sciences (12th Edition)

In each of the next two problems, two linear models are given for the data. For each model, (a) Find the residuals and their sum; (b) Find the sum of the squares of the residuals; (c) Decide which model is the better fit. (See Example 2.) International Trade The following table shows the South Koreas’s petrochemical exports to China (in billions of dollars) for several years. Year 2010 2011 2012 2013 2014 Petrochemical 16 21 21 23 21.4 Let x= 10 correspond to the year 2010. Two equations that model these data are y = 1.35 x + 2.5 and y = 2 x − 3 (Data from: The Wall Street Journal. )

In each of the next two problems, two linear models are given for the data. For each model, (a) Find the residuals and their sum; (b) Find the sum of the squares of the residuals; (c) Decide which model is the better fit. (See Example 2.) International Trade The following table shows the South Koreas’s petrochemical exports to China (in billions of dollars) for several years. Year 2010 2011 2012 2013 2014 Petrochemical 16 21 21 23 21.4 Let x= 10 correspond to the year 2010. Two equations that model these data are y = 1.35 x + 2.5 and y = 2 x − 3 (Data from: The Wall Street Journal. )

Solution Summary: The author explains that the table below shows the South Koreas' petrochemical exports to China for several years.

Finite Mathematics with Applications In the Management, Natural, and Social Sciences (12th Edition)

Finite Mathematics with Applications In the Management, Natural, and Social Sciences (12th Edition)

12th Edition

ISBN: 9780134767611

Author: Margaret L. Lial, Tom Hungerford, John P. Holcomb, Bernadette Mullins

Publisher: PEARSON

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Textbook Question

Chapter 2.3, Problem 12E

In each of the next two problems, two linear models are given for the data. For each model,

(a) Find the residuals and their sum;

(b) Find the sum of the squares of the residuals;

(c) Decide which model is the better fit. (See Example 2.)

International Trade The following table shows the South Koreas’s petrochemical exports to China (in billions of dollars) for several years.

Year	2010	2011	2012	2013	2014
Petrochemical	16	21	21	23	21.4

Let x=10 correspond to the year 2010. Two equations that model these data are y = 1.35 x + 2.5 and y = 2 x − 3 (Data from: The Wall Street Journal.)

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Chapter 2.3, Problem 11E

Chapter 2.3, Problem 13E

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Chapter 2 Solutions

Finite Mathematics with Applications In the Management, Natural, and Social Sciences (12th Edition)

Ch. 2.1 - Checkpoint Locate (1,6),(3,5),(4,3),(0,2),and(5,0)...Ch. 2.1 - Checkpoint Which of the following are solutions of...Ch. 2.1 - Prob. 3CP Ch. 2.1 - Prob. 4CP Ch. 2.1 - Checkpoint From Figure 2.7 determine when the S&P...Ch. 2.1 - Prob. 6CP Ch. 2.1 - Prob. 7CP Ch. 2.1 - Prob. 8CP Ch. 2.1 - Prob. 1E Ch. 2.1 - State the quadrant in which each point lies....

Ch. 2.1 - Prob. 3E Ch. 2.1 - Prob. 4E Ch. 2.1 - Prob. 5E Ch. 2.1 - Prob. 6E Ch. 2.1 - Prob. 7E Ch. 2.1 - Prob. 8E Ch. 2.1 - Prob. 9E Ch. 2.1 - Prob. 10E Ch. 2.1 - Prob. 11E Ch. 2.1 - Prob. 12E Ch. 2.1 - Prob. 13E Ch. 2.1 - Prob. 14E Ch. 2.1 - Prob. 15E Ch. 2.1 - Prob. 16E Ch. 2.1 - Prob. 17E Ch. 2.1 - Prob. 18E Ch. 2.1 - Prob. 19E Ch. 2.1 - Prob. 20E Ch. 2.1 - Find the x-intercepts and y-intercepts of the...Ch. 2.1 - Prob. 22E Ch. 2.1 - Prob. 23E Ch. 2.1 - Find the x-intercepts and y-intercepts of the...Ch. 2.1 - Prob. 25E Ch. 2.1 - Prob. 26E Ch. 2.1 - Prob. 27E Ch. 2.1 - Prob. 28E Ch. 2.1 - Sketch the graph of the equation. See Examples...Ch. 2.1 - Prob. 30E Ch. 2.1 - Prob. 31E Ch. 2.1 - Prob. 32E Ch. 2.1 - Prob. 33E Ch. 2.1 - Prob. 34E Ch. 2.1 - Sketch the graph of the equation. 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See...Ch. 2.4 - Prob. 30E Ch. 2.4 - Prob. 31E Ch. 2.4 - Prob. 32E Ch. 2.4 - Prob. 33E Ch. 2.4 - Prob. 34E Ch. 2.4 - Prob. 35E Ch. 2.4 - Prob. 36E Ch. 2.4 - Prob. 37E Ch. 2.4 - Prob. 38E Ch. 2.4 - Prob. 39E Ch. 2.4 - Prob. 40E Ch. 2.4 - Prob. 41E Ch. 2.4 - Prob. 42E Ch. 2.4 - Prob. 43E Ch. 2.4 - Prob. 44E Ch. 2.4 - Prob. 45E Ch. 2.4 - Solve each inequality. Graph each solution. See...Ch. 2.4 - Prob. 47E Ch. 2.4 - Prob. 48E Ch. 2.4 - Temperature The given inequality describes the...Ch. 2.4 - Prob. 50E Ch. 2.4 - Prob. 51E Ch. 2.4 - Prob. 52E Ch. 2.4 - Prob. 53E Ch. 2.4 - Social Science A Gallup poll in January 2017 found...Ch. 2.4 - Prob. 55E Ch. 2.4 - Prob. 56E Ch. 2.5 - Solve each inequality. Graph the solution on the...Ch. 2.5 - Prob. 2CP Ch. 2.5 - Prob. 3CP Ch. 2.5 - Prob. 4CP Ch. 2.5 - Solve each inequality. a 3x-24 b p1-p3 c Why is 2...Ch. 2.5 - Prob. 6CP Ch. 2.5 - Prob. 7CP Ch. 2.5 - Prob. 1E Ch. 2.5 - Prob. 2E Ch. 2.5 - Prob. 3E Ch. 2.5 - Solve each of these quadratic inequalities. Graph...Ch. 2.5 - Prob. 5E Ch. 2.5 - Prob. 6E Ch. 2.5 - Solve each of these quadratic inequalities. Graph...Ch. 2.5 - Prob. 8E Ch. 2.5 - Prob. 9E Ch. 2.5 - Prob. 10E Ch. 2.5 - Prob. 11E Ch. 2.5 - Prob. 12E Ch. 2.5 - Prob. 13E Ch. 2.5 - Solve these inequalities. See Example 4. p3-25p0 Ch. 2.5 - Prob. 15E Ch. 2.5 - Prob. 16E Ch. 2.5 - Prob. 17E Ch. 2.5 - Prob. 18E Ch. 2.5 - Solve these inequalities. See Example 4. 6k3-5k24k Ch. 2.5 - Prob. 20E Ch. 2.5 - Prob. 21E Ch. 2.5 - Prob. 22E Ch. 2.5 - Prob. 23E Ch. 2.5 - Prob. 24E Ch. 2.5 - Prob. 25E Ch. 2.5 - Prob. 26E Ch. 2.5 - Prob. 27E Ch. 2.5 - Prob. 28E Ch. 2.5 - Prob. 29E Ch. 2.5 - Prob. 30E Ch. 2.5 - Prob. 31E Ch. 2.5 - Solve these rational inequalities. See Examples 7...Ch. 2.5 - Prob. 33E Ch. 2.5 - Prob. 34E Ch. 2.5 - Prob. 35E Ch. 2.5 - Prob. 36E Ch. 2.5 - Prob. 37E Ch. 2.5 - Prob. 38E Ch. 2.5 - Use a graphing calculator to solve these...Ch. 2.5 - Use a graphing calculator to solve these...Ch. 2.5 - Profit An analyst has found that her companys...Ch. 2.5 - Prob. 42E Ch. 2.5 - Prob. 43E Ch. 2.5 - Prob. 44E Ch. 2.CR - Prob. 1CR Ch. 2.CR - Prob. 2CR Ch. 2.CR - Sketch the graph of each equation. 5x3y=15 Ch. 2.CR - Prob. 4CR Ch. 2.CR - Sketch the graph of each equation. y+3=0 Ch. 2.CR - Prob. 6CR Ch. 2.CR - Prob. 7CR Ch. 2.CR - Prob. 8CR Ch. 2.CR - Prob. 9CR Ch. 2.CR - Prob. 10CR Ch. 2.CR - Prob. 11CR Ch. 2.CR - Prob. 12CR Ch. 2.CR - Prob. 13CR Ch. 2.CR - Prob. 14CR Ch. 2.CR - Prob. 15CR Ch. 2.CR - Prob. 16CR Ch. 2.CR - Prob. 17CR Ch. 2.CR - Prob. 18CR Ch. 2.CR - Prob. 19CR Ch. 2.CR - Prob. 20CR Ch. 2.CR - Prob. 21CR Ch. 2.CR - Prob. 22CR Ch. 2.CR - Prob. 23CR Ch. 2.CR - Prob. 24CR Ch. 2.CR - Prob. 25CR Ch. 2.CR - Prob. 26CR Ch. 2.CR - Prob. 27CR Ch. 2.CR - Prob. 28CR Ch. 2.CR - Prob. 29CR Ch. 2.CR - Prob. 30CR Ch. 2.CR - Prob. 31CR Ch. 2.CR - Prob. 32CR Ch. 2.CR - Prob. 33CR Ch. 2.CR - Prob. 34CR Ch. 2.CR - Prob. 35CR Ch. 2.CR - Prob. 36CR Ch. 2.CR - Two-Year School Tuition The following table shows...Ch. 2.CR - Four-Year School Tuition The following table shows...Ch. 2.CR - Prob. 39CR Ch. 2.CR - Prob. 40CR Ch. 2.CR - Prob. 41CR Ch. 2.CR - Prob. 42CR Ch. 2.CR - Prob. 43CR Ch. 2.CR - Prob. 44CR Ch. 2.CR - Prob. 45CR Ch. 2.CR - Prob. 46CR Ch. 2.CR - Prob. 47CR Ch. 2.CR - Prob. 48CR Ch. 2.CR - Prob. 49CR Ch. 2.CR - Prob. 50CR Ch. 2.CR - Prob. 51CR Ch. 2.CR - Prob. 52CR Ch. 2.CR - Prob. 53CR Ch. 2.CR - Prob. 54CR Ch. 2.CR - Prob. 55CR Ch. 2.CR - Prob. 56CR Ch. 2.CR - Prob. 57CR Ch. 2.CR - Prob. 58CR Ch. 2.CR - Prob. 59CR Ch. 2.CR - Prob. 60CR Ch. 2.CR - Prob. 61CR Ch. 2.CR - Prob. 62CR Ch. 2.CR - Prob. 63CR Ch. 2.CR - Prob. 64CR Ch. 2.CR - Prob. 65CR Ch. 2.CR - Prob. 66CR

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