Question

Find the mean of the first ten natural numbers.

Answer 1

Sum of first ten Natural numbers $=\frac{n\left(n+1\right)}{2}$, where $n=10$

$=\frac{10\left(11\right)}{2}$

$=55$

Now Mean of first ten Natural number $=\frac{55}{10}$

$=5.5$