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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