If the mean of 6 observations x,x+2,x+4,x+6,x+8,x+10 is 10, find the value of x.


Answer:

5

Step by Step Explanation:
  1. We know,  Mean =Sum of observationsNumber of observations
  2. Thus, mean of the given observations =x+x+2+x+4+x+6+x+8+x+106=6x+306 But we are given that the mean is 10.  6x+306=106x+30=606x=30x=5
  3. Hence, the value of x is 5.

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