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Katyanochek1 [597]
1 year ago
8

Which sample fairly represents the population? Select two options.

English
2 answers:
Ad libitum [116K]1 year ago
8 0

Option 1:

Measuring the heights of every fiftieth person on the school roster to determine the average heights of the boys in the school

Comment: this might not be a good idea for fairness as we only wish to determine average height of the boys. Taking a group of 50 people randomly, might not give us the same number of boys every time.

Option 2: 

Calling every third person on the soccer team’s roster to determine how many of the team members have completed their fundraising assignment 

Comment: The context doesn't seem to need a sampling. The number of players in a soccer team is considerably small. We can find exact data by asking in person.

Option 3:

Observing every person walking down Main Street at 5 p.m. one evening to determine the percentage of people who wear glasses

Comment: To get a more accurate result and fairer sampling, the period of observing could have been longer, for example, observing for 12 hours on that day, or an alternative is to observe at 5 pm for 7 days in a row. It could happen that no one walking down the Main street precisely at 5 pm wears glasses, or it could happen the other way around.

Option 4: 

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.

Comment: This sampling does fairly represent the population, although it might be an idea to scale down the sample population, i.e. every fiftieth parent. 

Answer: Option 4

liubo4ka [24]1 year ago
6 0

Answer:

I think the answer is A and C sorry if its wrong

Explanation:

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