Which of the following are examples of random samples? Select all that apply?
1) You want to find out which sport students like playing the most at your school. You survey every 4th student playing basketball at recess.
2) Your teacher is selecting 3 students to help run your class booth at the school carnival. She puts all of the student names in a hat and draws out 3.
3) A large company wants to determine what their employees dislike the most about their job. They assign every employee a number and use a random number generator to survey 500 employees.
4) A radio station wants to determine teenagers favorite genre of music. They survey every teenager leaving a hip hop concert.
5) Your school is selecting a new mascot and wants student input. They put all student ID numbers in a box and selected 75 at random to survey.