Question

Find the average of 9,11,8,20,10,16,12​

Answer 1

Before, finding the answer. Let's find out how we can find the answer.

• In this question, we are asked to find the Average.
• So, to find the Average of the data, we must use the formula of :

$\boxed{ \tt Average = \dfrac{Sum \: of \: all \: numbers}{No \: of \: numbers} }$

Here, in the numerator, we have to add the numbers and in the denominator, we have to count how many numbers are there. Then, we must divide both.

__________________

Given :

• Data = 9,11,8,20,10,16,12​

To find :

• Average

Solution :

We know that,

${ \tt Average = \dfrac{Sum \: of \: all \: numbers}{No \: of \: numbers} }$

             ${ \tt = \dfrac{9+11+8+20+10+16+12}{ 7} }$

             ${ \tt = \dfrac{86}{ 7} }$

             ${ \tt = 12.28 }$

Therefore, the Average of the data is 12.28.