Question

if the average of 6,8,5,7,9 x and 4 is 7 find the value of x

Answer 1

Step-by-step explanation:

average=sum of All observations/total observations

7=6+8+5+7+9+x+4/7

7=39+x/7

7×7=39+x

49=39+x

x=49-39

x=10

so,the value of x is 10

Answer 2

The value of x is 10.

Step-by-step explanation:

Given : If the average of 6,8,5,7,9 x and 4 is 7.

To find : The value of x ?

Solution :

The average is defined as the sum of the observation divided by number of observation.

i.e. $A=\frac{\sum x_n}{n}$

Substitute the given values,

$7=\frac{6+8+5+7+9+x+4}{7}$

$49=39+x$

$x=49-39$

$x=10$

Therefore, the value of x is 10.

#Learn more

If the average of the values 9,6,7,8,5 and x is 8 find the value of x​

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