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 = (Sum \:of \: observation)/(Number \:of \: observation)}}}}`

`\longrightarrow`Here, no of observation are 5

Now,

`\begin{gathered}\\\implies\quad \sf Average = (1+9+11+13+26)/(5) \\\end{gathered}`

`\begin{gathered}\\\implies\quad \sf Average = (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 ✔️