Question

find the average of 7,11,8,12,6,10,9

Answer 1

Sum of all terms =63
Mean or average =sum of all terms /no of terms
Av. 63/7 =9
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Answer 2

The average of 7,11,8,12,6,10,9 is 9.

Given:

The seven numbers are 7,11,8,12,6,10,9

To Find:

We have to find the average of 7,11,8,12,6,10,9

Solution:

We know that the average of n numbers $x_{1} ,x_{2} ,x_{3},....., x_{n}$ is

=$({x_{1} +x_{2}+x_{3}+....x_{n})/n$

Therefore, the average of the numbers 7,11,8,12,6,10,9 is

= $\frac{7+11+8+12+6+10+9}{7}$

=$\frac{63}{7}$

=$9$

Hence,  the average of 7,11,8,12,6,10,9 is 9.

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