8.3 Applications to Physics 1. Work is only done if an object moves. Time has nothing to do with work. The work done to raise a bar of iron 1 meter on the surface of the moon is thesame as on the surface of the earth. What goes up must come down.
Water pressure is proportional to depth.
8.5 Application to Distribution Functions 1. The distribution of the number of years of education completed by adults in a population is approximately by a formula. With the distribution of ages approximated by a graph consisting of line segments, the slope of the distribution after age 40 was chosen arbitrarily. Every distribution function has a cumulative distribution function. A probability is a number which is the value of an integral.