Question

Mean of 12 observation is 11. If three of the observation 2,3,6 are replaced by 4,5,2 then find new mean

Answer 1

Answer:

Step-by-step explanation:

Mean = Sum of all observation/

Total number of observation

The observations 2, 3, 6 are replaced by 4, 5, 2.

=> 2+3+6 = 11

=> 4+5+2 = 11

As the sums of both are the same there would be no change in the value of new mean.

So, new mean is 11.