Solution 
To get the mean: 
The sum is 84 
Divide this by 7 to get the mean. 
The mean is 12 
To get the median: 
The middle number is 12, 
 
To get the mode: 
Multiple numbers occurred the most frequently, (2 times), so we have multiple modes: 7 12 15 
 
To get the range: 
The minimum number is 7.  The maximum number is 16.  The range is 16 - 7 = 9. 
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