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Two researchers are gathering data on hours of video games played by school-aged children and young adults. They each randomly sample different groups of 150 students from the same school. They collect the following data.Researcher AHours Played per Week Frequency Relative Frequency Cumulative Relative Frequency0-2 26 0.17 0.172-4 30 0.20 0.374-6 49 0.33 0.706-8 25 0.17 0.878-10 12 0.08 0.9510-12 8 0.05 1Researcher BHours Played per Week Frequency Relative Frequency Cumulative Relative Frequency0-2 48 0.32 0.322-4 51 0.34 0.664-6 24 0.16 0.826-8 12 0.08 0.908-10 11 0.07 0.9710-12 4 0.03 1As part of a way to reward students for participating in the survey, the researchers gave each student a gift card to a video game store. Would this affect the data if students knew about the award before the study?Yes, people who play games more might be more likely to participate. This would leave out many students who do not play games at all and skew the data.Yes, people who do not play games at all might be more likely to participate. This would leave out many students who play games more and skew the data.    No, both people who play games and people who do not play games would want the gift card equally as much. This would include all students from the school and not skew the data.No, neither people who play games nor people who do not play games would be interested in the gift card. This would not effect who participates and not skew the data.

Question

Two researchers are gathering data on hours of video games played by school-aged children and young adults. They each randomly sample different groups of 150 students from the same school. They collect the following data.Researcher AHours Played per Week Frequency Relative Frequency Cumulative Relative Frequency0-2 26 0.17 0.172-4 30 0.20 0.374-6 49 0.33 0.706-8 25 0.17 0.878-10 12 0.08 0.9510-12 8 0.05 1Researcher BHours Played per Week Frequency Relative Frequency Cumulative Relative Frequency0-2 48 0.32 0.322-4 51 0.34 0.664-6 24 0.16 0.826-8 12 0.08 0.908-10 11 0.07 0.9710-12 4 0.03 1As part of a way to reward students for participating in the survey, the researchers gave each student a gift card to a video game store. Would this affect the data if students knew about the award before the study?Yes, people who play games more might be more likely to participate. This would leave out many students who do not play games at all and skew the data.Yes, people who do not play games at all might be more likely to participate. This would leave out many students who play games more and skew the data.    No, both people who play games and people who do not play games would want the gift card equally as much. This would include all students from the school and not skew the data.No, neither people who play games nor people who do not play games would be interested in the gift card. This would not effect who participates and not skew the data.

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Solution

Yes, people who play games more might be more likely to participate. This would leave out many students who do not play games at all and skew the data.

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