I am assuming that the symbol before x is supposed to be Σ.
Σx/n = mean
Fill in the known values and solve for Σx.
A sample of n = 5 scores has a mean of M = 12. What is ‡” x for this sample?
2 answers
sum of all five values of x /5 = 12
so the sum is 60
so the sum is 60