If mean of 15,20,28,32,23,43,21,18,25 x is 27, find the value of x - Maths - Statistics

Question

If mean of 15,20,28,32,23,43,21,18,25 x is 27, find the value of x

Manbar Singh · Accepted Answer

We have,number of observations = 10sum of observations = 15 + 20 + 28 + 32 + 23 + 43 + 21 + 18 + 25 + x =225 +xNow, mean = sum of observationsnumber of observations ⇒27 = 225 + x10⇒x = 270 - 225 = 45so, x = 45

If mean of 15,20,28,32,23,43,21,18,25 x is 27, find the value of x.