Problem:
Given the following table:
| Year: | 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 |
|---|
| DJ Average | 824 | 972 | 882 | 1027 | 1252 | 1198 | 1537 | 1927 | 2015 | 2144 |
|---|
|
[Extracted from the Chance site.]
find and graph the least squares regression line.
Visualization:
Using TI-86 graphing calculator:
Constructed with the help of Chris O'Brien.