.Question 4On a city train line, peak ridership occurs between 7 AM and 7 PM. The fairness of a passenger survey could be improved by over-sampling riders from which group?1 pointPassengers who are senior citizensPassengers who ride the train during peak times Passengers who are young working professionalsPassengers who ride the train during off-peak times
Question
.Question 4On a city train line, peak ridership occurs between 7 AM and 7 PM. The fairness of a passenger survey could be improved by over-sampling riders from which group?1 pointPassengers who are senior citizensPassengers who ride the train during peak times Passengers who are young working professionalsPassengers who ride the train during off-peak times
Solution
The fairness of a passenger survey could be improved by over-sampling riders from the group of passengers who ride the train during off-peak times.
Here's why:
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The question mentions that peak ridership occurs between 7 AM and 7 PM. This means that most passengers are already riding the train during these times.
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If a survey is conducted during peak times, it will naturally include more responses from passengers who ride the train during these times. This could lead to a bias in the survey results towards the experiences and opinions of peak-time riders.
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To improve the fairness of the survey, it would be beneficial to over-sample riders from off-peak times. This means intentionally collecting more responses from this group than would naturally occur if responses were collected randomly.
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By over-sampling off-peak riders, the survey can ensure that this group's experiences and opinions are adequately represented in the survey results, despite them being a smaller proportion of the total ridership. This helps to improve the fairness of the survey.
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