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The weights (in kg) of \(50\) wrestlers are recorded in the following table :
 
 Weight (in kg) \(100-110\)  \(110-120\)   \(120-130\) \(130-140\)  \(140-150\) 
 Number of wrestlers  \(4\) \(14\)  \(21\)   \(8\) \(3\) 
 
Find the mean weight of the wrestlers.
 
Answer:  
 
The mean is \(kg\).
 
[Note: Enter the answer in to one decimal number.]