During a period of 28 minutes, a music station played 8 minutes of commercials. what is the ratio of music they played to commercials they played?

Consider the diagram. which line segment has the same measure as st? rx tx sr xs

How do you solve a question like this?

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