Ten bowling pins are set up in the usual way forming a triangle with the point facing the bowler how can three pins be moved so that the 10 pins are still set up I. The conventional manner but with the point of the triangle away from the bowler

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?