Praxis 5003 Practice Test Practice Question
The heights, in centimeters, of 9 children are shown. Why is the median of the data set a better measure of center than the mean?
Correct Answer: C
Rationale: The median is a better measure of center in this case because it is less affected by outliers, such as the value of 149. Outliers can skew the mean, making it higher than most of the data points. Option A is incorrect as the odd number of data points does not inherently make the median a better measure; it simply indicates that there is a single middle value. Option B is misleading; while the mean may not be in the data set, this alone does not justify the median's superiority. Option D is also incorrect, as the mean does not need to align with the most frequently occurring value to be valid.
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