The average remaining lifetimes for women of various ages in a certain country are given in the following table.† (A graphing calculator is recommended.) Age (x) Years (y) 0 80.6 15 65.5 35 46.6 65 20.2 75 11.7 Average Remaining Lifetimes for Women (a)
The average remaining lifetimes for women of various ages in a certain country are given in the following table.† (A graphing calculator is recommended.) Age (x) Years (y) 0 80.6 15 65.5 35 46.6 65 20.2 75 11.7 Average Remaining Lifetimes for Women (a)
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.3: Least Squares Approximation
Problem 31EQ
Related questions
Question
The average remaining lifetimes for women of various ages in a certain country are given in the following table.† (A graphing calculator is recommended.)
Age (x) | Years (y) |
---|---|
0 | 80.6 |
15 | 65.5 |
35 | 46.6 |
65 | 20.2 |
75 | 11.7 |
Average Remaining Lifetimes for Women
(a)
Find the equation of the least-squares line for the data. (Round all numerical values to two decimal places.)
ŷ =
(b)
Use the equation from part (a) to estimate the remaining lifetime (in years) of a woman of age 28. (Round your answer to the nearest year.)
yr
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps with 3 images
Recommended textbooks for you
Linear Algebra: A Modern Introduction
Algebra
ISBN:
9781285463247
Author:
David Poole
Publisher:
Cengage Learning
Trigonometry (MindTap Course List)
Trigonometry
ISBN:
9781305652224
Author:
Charles P. McKeague, Mark D. Turner
Publisher:
Cengage Learning
College Algebra
Algebra
ISBN:
9781305115545
Author:
James Stewart, Lothar Redlin, Saleem Watson
Publisher:
Cengage Learning
Linear Algebra: A Modern Introduction
Algebra
ISBN:
9781285463247
Author:
David Poole
Publisher:
Cengage Learning
Trigonometry (MindTap Course List)
Trigonometry
ISBN:
9781305652224
Author:
Charles P. McKeague, Mark D. Turner
Publisher:
Cengage Learning
College Algebra
Algebra
ISBN:
9781305115545
Author:
James Stewart, Lothar Redlin, Saleem Watson
Publisher:
Cengage Learning