In Ogilvie’s class of 40 students, 24 students report that English is their favorite class and 40% of the students report that keyboarding is their favorite class. Show your work to explain how to determine whether more students prefer English or keyboarding.

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?