sat suite question viewer
The box plots summarize the masses, in kilograms, of two groups of gazelles. Based on the box plots, which of the following statements must be true?
Explanation
Choice C is correct. The median of a data set represented in a box plot is represented by the vertical line within the box. It follows that the median mass of the gazelles in group is kilograms, and the median mass of the gazelles in group is kilograms. Since kilograms is greater than kilograms, the median mass of group is greater than the median mass of group .
Choice A is incorrect. The mean mass of each of the two groups cannot be determined from the box plots.
Choice B is incorrect. The mean mass of each of the two groups cannot be determined from the box plots.
Choice D is incorrect and may result from conceptual or calculation errors.