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Each of Questions 1 to 7 presents two quantities. Quantity A and Quantity B. Compare the two quantities. You may use additional
Each of Questions 1 to 7 presents two quantities. Quantity A and Quantity B. Compare the two quantities. You may use additional
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2013-05-19
18
问题
Each of Questions 1 to 7 presents two quantities. Quantity A and Quantity B. Compare the two quantities. You may use additional information centered above the quantities if such information is given. Choose one of the following answer choices:
(A)if Quantity A is greater;
(B)if Quantity B is greater;
(C)if the two quantities are equal;
(D)if you cannot determine the relationship based on the given information.
选项
A、
B、
C、
D、
答案
C
解析
The correct answer is C. The test scores in Quantity B are each 10 points higher than the scores listed in Quantity A. The mean for Quantity B would be 10 points greater than the mean for Quantity A, but the standard deviations would remain the same.
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