Identify the type of sampling method used in each situation. 1. To determine the top four pizza toppings favored by its customers, a pizza place invites its customers to complete a survey. 2. To determine the magazine preferred by students in 9th Convenience Sample grade, Stephanie asks her best friends in her 9th grade Stratified Sample math class. 3. To determine the most Simple Random popular music at a high Sample school, 400 students' names are randomly selected by a Self-Selected Sample computer. 4. To determine if a new shopping mall needs to be built in your community, a company telephones 5% of the residents from the various income levels found in the community