Question

which sample fairly represents the population? select two options. measuring the height of every fiftieth person on the school roster to determine the average height of the boys in the school calling every third person on the soccer teams roster to determine how many of the team members have completed their fundraising assignment observing every person walking down main street at 5 p.m. one evening to determine the percentage of people who wear glasses sending a confidential e - mail survey to every one - hundredth parent in the school district to determine the overall satisfaction of the residents of the town taking a poll in the lunch room (where all students currently have to eat lunch) to determine the number of students who want to be able to leave campus during lunch

Explanation:

A fair sample should be representative of the entire population. Measuring every fiftieth person on the school roster to find boys' average height is biased as it's not just boys. Calling every third person on soccer - team roster is only about soccer - team members. Observing people on Main Street at a specific time may not represent all people. Sending e - mail to every one - hundredth parent in school district is not representative of all town residents. Taking a poll in the lunch room (where all students have to eat) can represent students' opinions about leaving campus during lunch as it includes all students who eat lunch there. Also, calling every third person on the soccer - team roster can represent the soccer - team members' fundraising completion status as it's a systematic sample within the team.

Answer:

B. calling every third person on the soccer team's roster to determine how many of the team members have completed their fundraising assignment
E. taking a poll in the lunch room (where all students currently have to eat lunch) to determine the number of students who want to be able to leave campus during lunch