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The weights (in kilogram) of 15 students...

The weights (in kilogram) of 15 students are as follows :
31, 35, 27, 29, 32, 43, 37, 41, 34, 28, 36, 44, 45, 42, 30
Find the median. If the weight 44 kg is replaced by 46 kg and 27 kg by 25 kg, find the new median.

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