SOLUTION: what does it mean when there is a line over a variable?

SOLUTION: what does it mean when there is a line over a variable?

Algebra.Com

Question 68543: what does it mean when there is a line over a variable?
Answer by funmath(2933) (Show Source): You can put this solution on YOUR website!
It depends. If you're in statistics it stands for the mean or average. Can you tell me what math you're in along with the example you're confused about?
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