Identify the type of sampling method used in each situation.

To identify the most popular sport of people who live in a city, interviews are conducted with fans leaving a stadium after a hockey game.

A sample of students from a school was taken by obtaining an alphabetical list of all 1000 students and assigning a different number to each student on the list. Every 10th student in the list was then sampled and asked to fill out a survey.

The student council at a local high school is collecting data to determine the top ten favorite songs of the students in the school. They randomly interview 10% of the students from each grade.

A company preparing to throw its annual Christmas party is collecting data to determine the top ten favorite foods of all the employees in the company. They invite employees to fill in a survey and return it.