MediumMath· Problem-Solving and Data Analysis· One-variable data: Distributions and measures of center and spread· MCQ
Which of the following statements about the means and medians of data set A and data set B is true?
A
Only the means are different.
B
Only the medians are different.
C
Both the means and the medians are different.
D
Neither the means nor the medians are different.
Correct answer: A
Explanation
Choice A is correct. The mean of a data set is the sum of the values divided by the number of values. The mean of data set A is , or 5. The mean of data set B is , or 14.5. Thus, the means are different. The median of a data set is the middle value when the values are ordered from least to greatest. The medians of data sets A and B are both 5. Therefore, the medians are the same, so only the means are different.
Choices B, C, and D are incorrect and may result from conceptual or calculation errors.
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id cb_question_bank:9558f94f-fe83-4a03-8ffa-cdbeb96508f3 · question 9110c120 · IBN 026381-DC
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