the range is the largest number minus the smallest number
boys = 20 - 8 = 12
girls = 15 - 3 = 12
the ranges are both the same
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boys median = (12 + 13) / 2 = 25/2 = 12.5
girls median = (6 + 7) / 2 = 13/2 = 6.5
the boys median is greater then the girls median