which sample fairly represents the population? select two options. \n□ measuring the height of every…

which sample fairly represents the population? select two options. \n□ measuring the height of every fiftieth person on the school roster to determine the average height of the boys in the school \n□ calling every third person on the soccer teams roster to determine how many of the team members have completed their fundraising assignment \n□ observing every person walking down main street at 5 p.m. one evening to determine the percentage of people who wear glasses \n□ 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 \n□ 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

which sample fairly represents the population? select two options. \n□ measuring the height of every fiftieth person on the school roster to determine the average height of the boys in the school \n□ calling every third person on the soccer teams roster to determine how many of the team members have completed their fundraising assignment \n□ observing every person walking down main street at 5 p.m. one evening to determine the percentage of people who wear glasses \n□ 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 \n□ 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

Answer

Brief Explanations:

  1. Measuring every fiftieth person on school roster for boys' height is biased as it includes girls too and doesn't target just boys properly.
  2. Calling every third person on soccer - team roster is a fair sample for the soccer - team population regarding fundraising assignment.
  3. Observing people on Main Street at a specific time is biased as it doesn't represent all people in general.
  4. Sending e - mail to every one - hundredth parent in school district for town residents' satisfaction is biased as it only targets parents in school district, not all town residents.
  5. Taking a poll in lunch room (where all students eat) is a fair sample for students' opinion on leaving campus during lunch as it covers the entire student population that eats lunch there.

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