Question

If the mean of the following observation is 30 then find the value of x

12,5,7,11,5,7,9,13,x,50
plz its Urgent​

Answer 1

Answer:

Sum of observations=119+x

No of observations=10

Mean=30

119+X=300

X=181

Answer 2

Solution:-

Mean Given = 30.

Mean ( Average) = Sum of Observations/ Number of Observations

=> 30 = (12 + 5 + 7+11+5+7+9+13+50+x)/10

=> 300 = 119 + x

=> x = 300 - 119

=> x = 181.

Hence,

The Value of X = 181.

Thanks!!