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a)
From the box plot, the range for Greenhouse A is between 12.2 and 17.8.
Range for Greenhouse A is 17.8-12.2=5.6
From the box plot, the range for Greenhouse B is between 12.4 and 17.6.
Range for Greenhouse A is 17.6-12.4=5.2
Hence, the range of weights in Green house A is large compared with the range of Greenhouse B.
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