MCQ
The arithmetic mean of 1, 2, 3, ..., n is
- ✓$\frac{n+1}{2}$
- B$\frac{n-1}{2}$
- C$\frac{n}{2}$
- D$\frac{n}{2}+1$
✓
Answer
Correct option: A.
$\frac{n+1}{2}$
a
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