(Data file: water) A major source of water in Southern California is the Owens Valley. This water supply is in turn replenished by spring runoff from the Sierra Nevada mountains. If runoff could be...

(Data file: water) A major source of water in Southern California is the Owens Valley. This water supply is in turn replenished by spring runoff from the Sierra Nevada mountains. If runoff could be predicted, engineers, planners, and policy makers could do their jobs more efficiently. The data file contains snowfall depth measurements over 43 years taken at six sites in the mountains, in inches, and stream runoff volume at a site near Bishop, California. The three sites with names starting with “O” are fairly close to each other, and the three sites starting with “A” are also fairly close to each other. Year is also given in the data file, but should not be used as a predictor.