The data shows the weights of 2 groups of house cats in pounds.
 Group 1
 Group 2
 6
 8
 8
 10
 8
 10
 9
 11
 10
 12
 14
 15
 15
 15
 18
 15
 20
 21
 Which statistic has a greater value for Group 1 than Group 2?
 A. Mean
 B. Range
 C. Mode
 D. Median
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