The drama club members at Millie’s middle school are selling tickets to the school play. Millie wants to determine the average number of tickets sold. First, she surveyed the club members in her homer

The drama club members at Millie’s middle school are selling tickets to the school play. Millie wants to determine the average number of tickets sold. First, she surveyed the club members in her homeroom, and then she surveyed every third member of the club in her physical education class. Which sampling technique should produce a more representative sample?