Suppose we are producing wire which is extruded as a long, continuous strand. After each 100 meters, the wire is cut and placed on a spool. Defects in the wire appear at random and on the average there are 4 defects per kilometer of wire. Assume that the spacing between defects is exponentially distributed. For notation, let N (t) be the number of defects in the first t meters of wire produced, S0 = 0, Sn be the location of the nth defect, Tn be the distance between the (n 1)st and nth defect, and be the rate of defects per meter of wire