Question

Find the average of this set of numbers.1, 9, 11, 13, 26
A) 12
B) 13
C) 14
D) none of the above

Answer 1

Given Numbers:-

• 1, 9, 11, 13, 26

To Find:-

• average of this set of numbers

Solution:-

$\green{ \underline { \boxed{ \sf{Average = \frac{Sum \:of \: observation}{Number \:of \: observation}}}}}$

$\longrightarrow$Here, no of observation are 5

Now,

$\begin{gathered}\\\implies\quad \sf Average = \frac{1+9+11+13+26}{5} \\\end{gathered}$

$\begin{gathered}\\\implies\quad \sf Average = \frac{60}{5} \\\end{gathered}$

$\begin{gathered}\\\implies\quad \sf Average = 12 \\\end{gathered}$

$\longrightarrow$The Average of given set of numbers is 12 .

$\therefore\:$ Option A) is correct ✔️