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Answer variants:
7
6
10
8
The number of people(in thousands) living in a locality is given below. Determine the value of "\(x\)" if the mean of the following data is 35.
 
Age\(0 - 10\)\(10 - 20\)\(20 - 30\)\(30 - 40\)\(40 - 50\)\(50 - 60\)\(60 - 70\)
Number of people89\(x\)42910
 
The value of the variable is
.