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Ms. Leeper gives her sixth- and seventh-grade students a geography test to decide who will represent her class in the school geography bee. The line plots below show the results of the test for her sixth-grade class and seventh-grade class, respectively.
The data for each grade have the same interquartile range (IQR). Which of the following best compares the two test score distributions?

A - The median score of the seventh-grade class is 2 points greater than the median score of the sixth-grade class. This difference is the same as the IQR.

B - The median score of the seventh-grade class is 2 points greater than the median score of the sixth-grade class. This difference is twice as much as the IQR.

C - The median score of the seventh-grade class is 3 points greater than the median score of the sixth-grade class. This difference is the same as the IQR.

D - The median score of the seventh-grade class is 3 points greater than the median score of the sixth-grade class. This difference is twice as much as the IQR.

Ms Leeper Gives Her Sixth And Seventhgrade Students A Geography Test To Decide Who Will Represent Her Class In The School Geography Bee The Line Plots Below Sho class=
Ms Leeper Gives Her Sixth And Seventhgrade Students A Geography Test To Decide Who Will Represent Her Class In The School Geography Bee The Line Plots Below Sho class=

Answer :

C, the median is 23 when you add 13 + 10. Then you divide 23 and 2.