Question
The accompanying data were read from graphs that appeared in an article. The variables shown are...
The accompanying data were read from graphs that appeared in an article. The variables shown are the number of acres burned in forest fires in the western United States and timber sales.
| Year | Number of Acres Burned (thousands) |
Timber Sales (billions of board feet) |
| 1945 | 196 | 1.9 |
| 1950 | 259 | 3.6 |
| 1955 | 265 | 4.4 |
| 1960 | 372 | 6.8 |
| 1965 | 89 | 9.7 |
| 1970 | 460 | 11.1 |
| 1975 | 175 | 11.2 |
| 1980 | 249 | 10.3 |
| 1985 | 442 | 10.2 |
| 1990 | 390 | 11.2 |
| 1995 | 185 | 3.7 |
(a) Compute the correlation coefficient. (Give the answer to
three decimal places.)
r =
Homework Answers
Answer #1
we can use MS excel also
Entering the data and use the following command
=Correl( range of first data that is number of acred burned, range of second data that is timber sales) .
Press enter
We get
r = 0.343
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The accompanying data were read from graphs that appeared in an article. The variables shown are...
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