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单选题
Based on the correlation of the data, which would most likely be the test grade of a student who studies 3 hours a day?
A
50
B
60
C
70
D
80
E
90
参考答案
参考解析
解析：
This scatter plot indicates a positive correlation between study time and grade Every student who studied more than two hours scored 80 or better on the test; several of these in the 90 range. Therefore, of the choices given, a student who studies 3 hours a day would be expected to earn a 90.
This scatter plot indicates a positive correlation between study time and grade Every student who studied more than two hours scored 80 or better on the test; several of these in the 90 range. Therefore, of the choices given, a student who studies 3 hours a day would be expected to earn a 90.
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