Aconstruction crew has just finished building a road. the crew worked for 13.5 days. if they built 2.4 kilometers of road each day, find the total length of road they built.

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e.g. 98.7654). x f(x) 0 1 2 3