Question

Find the value of x if the mean of the following data is 13
12,16,15,x,12,14,10

Answer 1

Heya here is your answer

Mean=Sum of observations/Number of observations

So,

Mean=12+16+15+x+12+14+10/7

13=79+x/7

91=79+x

x=12

Hence the value of x is 12

Plz mark as brainliest....

Answer 2

Given,

The data 12,16,15,x,12,14,10 and its mean is 13

To find,

The value of x.

Solution,

Mean is also called average and is calculated by dividing the sum of all data by the total count of data.

The data contains 7  numbers 12,16,15,x,12,14,10.

Mathematically it can be represented by,

⇒   (12+16+15+x+12+14+10)/7 = 13

⇒   (79+x)/7 = 13

⇒   79+x=91

⇒   x=91-79

⇒   x=12.

Hence, the value of x is 12.