Posted by coal on .
The mean of a set of 51 data points is 3.04. If a data value of 16 were added to the data set, what would be the approximate value of the new mean?

math 
PsyDAG,
Mean = Σx/n
3.04 = Σx/51
Solve for Σx, then
Mean = (Σx+16)/(n+1)