What is the value of the correlation coefficient?
A regression of the number of cases of a particular disease per 1000 people based on the number of people vaccinated against it as children (per 1000) is performed on data collected from 34 cities. The results are summarized below:
Intercept .914
Slope -.001
The value of r2 is equal to the regression sum of squares divided by the total sum of squares, so that r2 = 0.622 / 1.506 = 0.413
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Suppose that in the middle of January the weather is typically several degrees warmer than the rest of the month. Which of the following forecast methods would be used to predict this "January thaw" for the middle of January in the following year?
A. climatological forecast B. persistence forecast C. probability forecast D. forecast based on the analogue method
The detachment and removal of fragmented rock material is known as _______.
a - diastrophism b - sedimentation c - leaching d - regolith stripping e - erosion
The hurricane center is MOST likely to be near location _____ on Monday afternoon.
A. I
B. II
C. III
D. IV
Most of the precipitation and evaporation on Earth takes place over the
A) land masses. B) oceans. C) poles of the planet. D) ice caps and glaciers combined.