You decide to purchase a wide-screen television. The dimension of the television is given by the
length of the diagonal. If you purchase a 50-inch television with an actual width of 40 inches, what is
the height of your television?

At the beginning of a call to the cable company, a message tells customers, "after you finish talking to our customer service representative, you will be asked to take a five-question survey about the level of service you recieved. it would be appreciated if you could stay on the line to answer the survey questions." what type of sampling is the cable company using?