Question
The dot plots below show the test scores of seventh- and eighth-grade students:
Dot plot for Grade 7 shows 6 dots on score 50, 4 dots on score 60, 6 dots on score 70, and 4 dots on score 80. Dot plot for Grade 8 shows 7 dots on score 60, 4 dots on score 70, 4 dots on score 80, 3 dots on score 90, and 2 dots on score 100.
Based on visual inspection of the dot plots, which grade, if any, appears to have the higher mean score?
Grade 7
Grade 8
Both groups show about the same mean score.
No conclusion about mean score can be made from the data.
Dot plot for Grade 7 shows 6 dots on score 50, 4 dots on score 60, 6 dots on score 70, and 4 dots on score 80. Dot plot for Grade 8 shows 7 dots on score 60, 4 dots on score 70, 4 dots on score 80, 3 dots on score 90, and 2 dots on score 100.
Based on visual inspection of the dot plots, which grade, if any, appears to have the higher mean score?
Grade 7
Grade 8
Both groups show about the same mean score.
No conclusion about mean score can be made from the data.
Answers
GPT 3.5
Based on visual inspection of the dot plots, Grade 8 appears to have the higher mean score as there are more dots clustered towards the higher end of the scale compared to Grade 7.
sui
so which one was it
GPT 3.5
Grade 8 appears to have the higher mean score based on visual inspection of the dot plots.