Common questions
These answers match what the page actually computes.
Questions
Formula?
Sum of the values divided by how many there are.
Weighted mean?
Not built in. Repeat a number to raise its weight.
Mean vs average?
In everyday English they match. In statistics “average” can also mean median or mode.
Why no geometric mean?
A zero or negative value makes it undefined.
Is data uploaded?
No.
Excel column?
Paste it. Line breaks are separators.
Sample σ?
Yes, n − 1 in the denominator.
Type a problem on the calculator — it runs in this browser and nothing is uploaded.
Open the calculator — Mean Calculator