Concept explainers
To find:
An equation for the least squares line for given data.
Answer to Problem 1EA
Solution:
The equation for the least squares line is
Explanation of Solution
Given:
The data is given by,
Year of Birth | Life Expectancy (years) |
Table
Approach:
The general equation for least square line is as follows.
Here,
And
Calculation:
Consider
The total number of data is
So,
Construct the new table for find the value for
Totals |
Table
Then,
Now calculate for
Therefore, the equation for the least squares line is
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Chapter 1 Solutions
Pearson eText for Calculus for the Life Sciences -- Instant Access (Pearson+)
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillFunctions and Change: A Modeling Approach to Coll...AlgebraISBN:9781337111348Author:Bruce Crauder, Benny Evans, Alan NoellPublisher:Cengage Learning