Two researchers are gathering data on hours of video games played by school-aged
ID: 3170133 • Letter: T
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 A
Researcher B
Give a reason why the data may differ.
A) The researchers are studying different statistics, so there will be some variation in the data.
B) The researchers are studying different parameters, so there will be some variation in the data.
C) The researchers are studying the same statistic, so there will be some variation in the data.
D) The researchers are studying different samples, so there will be some variation in the data.
E) The researchers are studying the same population, so there will be some variation in the data.
Hours Played per Week Frequency Relative Frequency Cumulative Relative Frequency 0-2 26 0.17 0.17 2-4 30 0.20 0.37 4-6 49 0.33 0.70 6-8 25 0.17 0.87 8-10 12 0.08 0.95 10-12 8 0.05 1Explanation / Answer
Answer: D) The researchers are studying different samples, so there will be some variation in the data.
Reason: Both the researcher are studying a different set of 150 students, hence, both have different samples. Different samples will lead to different observations and hence, the results may vary.
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