There are 500 students at Jacob's school.

Jacob wants to conduct a survey of the students at his school to determine the level of interest in participating in a musical.

Which of the following is most likely to produce a representative sample of students’ interest in participating in the musical?

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The athletic department at Hornell High School would like to determine the average height of the 1200 male students at the school.

Select from the following survey methods that would allow the department to draw valid conclusions about the average height of the male students at Hornell High School.