4.12 Information on modes of transportation for coal leaving the Appalachian region is shown in Figure 4.11. If coal arriving at a certain power plant comes from this region, find the probability that it was transported out of the region using each of these modes of transportation a By track to rail b By water only c At least partially by truck d At least partially by rail e By modes not involving water. (Assume

“other” does not involve water)

Transcribed Image Text:

Truck to rail 43% Truck only 12% Truck to water 4% Water only 5% Rail only 31% Other 5%