The median age of the science teachers at Mike’s school is the same as the median age of the math teachers, but the ages of the math teachers show greater variability. Which statement most likely describes the data sets?

Greater variability means the math teachers’ ages are more spread out. The range measures spread by subtracting the youngest age from the oldest age, so the math teachers most likely have a greater range than the science teachers. Choice A states this; the median being the same does not determine the number of teachers, their average ages, or who is the oldest.

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