
Concept explainers
For the data shown below find the equation of regression line for men and women both separately and graph the lines on the same coordinate plane. And then compare the graphs.
Men | Score | Rank | Women | Score |
Shaun White | 93 | 1 | Torah Bright | 96.67 |
Mason Aguirre | 90.33 | 2 | Kelly Clark | 93 |
JanneKorpi | 85.33 | 3 | Soko Yamaoka | 85 |
Luke Mitrani | 85 | 4 | Ellery Hollingsworth | 79.33 |
KeirDillion | 81.33 | 5 | Sophie Rodriguez | 71 |

Answer to Problem 19HP
The regression line is
Explanation of Solution
Given: The given data is shown as,
Men | Score | Rank | Women | Score |
Shaun White | 93 | 1 | Torah Bright | 96.67 |
Mason Aguirre | 90.33 | 2 | Kelly Clark | 93 |
JanneKorpi | 85.33 | 3 | Soko Yamaoka | 85 |
Luke Mitrani | 85 | 4 | Ellery Hollingsworth | 79.33 |
KeirDillion | 81.33 | 5 | Sophie Rodriguez | 71 |
Calculation: With the help of given data, the equation for regression line for both men and women using the calculator are written as,
Graph: The graph for both men and women on the same coordinate axis is shown as,
Interpretation: From the graph, it can be seen that the graph of women is steeper than men.
Chapter 4 Solutions
Algebra 1
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