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?A50B60C70D80E90

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.

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