Concept explainers
a.
To draw a
The cubic regression equation is
The scatter plot is,
Given:
The given data is,
Concept Used:
Use online graphing calculator to scatter plot of the given data.
Calculation:
The scatter plot of the given data is,
The equation of cubic regression is
b.
To estimate how far is Lewis from the motion detector initially.
Lewis is
Given:
The equation of cubic regression is
Concept Used:
Solve for y when x= 0.
Calculation:
Plug x= 0 in cubic regression model
The initial difference is:
Conclusion:
Hence, Lewis is
c.
To estimate the distance where the Lewis change his direction.
Lewis changes his direction at two points that is t= 1.5 seconds and at t =5 seconds.
The scatter plot of the data is,
Concept Used:
Observe the scatter plot.
Calculation:
From the scatter plot it is observed that the Lewis changes his direction at two points that is t= 1.5 seconds and at t =5 seconds.
Conclusion:
The equation of regression of the scatter plot is
d.
To find the approximate
The approximate
Given:
The given data is:
Concept Used:
Use online graphing calculator
Calculation:
The graph is:
The approximate
Conclusion:
The approximate
e.
To determine whether the true value of
The true value of
Given:
The given data is,
Concept Used:
Use online graphing calculator to find the median-median line equation.
Calculation:
As, from the graph and from the linear regression equation it can be observed that the true value of
Conclusion:
The true value of
Chapter 2 Solutions
PRECALCULUS:GRAPHICAL,...-NASTA ED.
- Calculus: Early TranscendentalsCalculusISBN:9781285741550Author:James StewartPublisher:Cengage LearningThomas' Calculus (14th Edition)CalculusISBN:9780134438986Author:Joel R. Hass, Christopher E. Heil, Maurice D. WeirPublisher:PEARSONCalculus: Early Transcendentals (3rd Edition)CalculusISBN:9780134763644Author:William L. Briggs, Lyle Cochran, Bernard Gillett, Eric SchulzPublisher:PEARSON
- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning