Things vary in life virtually nothing (except physicalstandards such as the spe

Things vary in life virtually nothing (except physicalstandards such as the speed of light) we interact with is constantover time. Much of this variation follows somewhat predictablepatterns that can be examined using probability. An example of asubjective probability is: Cops usually do not patrol this roadso I can get away with speeding. An empirical probability exampleis: Each production run has a 5% reject rate. A classical (ortheoretical) probability example is: This die has six sides so Ishould see the number 2 come up 1/6th of the time.