Concept explainers
To solve: the given system for
Answer to Problem 81E
The least squares regression line is given by:
Explanation of Solution
Given information :
The system of linear equation in
And
Points to use a graphing utility:
Calculation :
The system of linear equation in
Divide equation (1) and (2) by
Solving equation (3) and (4) by elimination method:
Put the value of
Therefore, the value of
Now
The least squares regression line is given by:
Use graphing utility to confirm the result by given points:
Therefore, from the graph it is clear that least squares regression line is given as
Chapter 7 Solutions
PRECALCULUS W/LIMITS:GRAPH.APPROACH(HS)
- 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