An amusement park has opened a new roller coaster. it is so popular that people are waiting for up to 3 hours for a 2-minute ride. concerned about how people who might be willing to wait in line for 3 hours feel about this, they survey thethe firstfirst 2020 peoplepeople in line for the rollerin line for the roller coaster. coaster. a) what kind of sample is this? b) is it likely to be representative of the people in line for the roller coaster? c) what is the sampling frame?