A) 12
B) 14
C) 16
D) 18
Correct Answer: B
Solution :
Mean of first 7 observations = 16 Sum of first 7 observations Mean of last 7 observations = 12 Sum of last 7 observations Now, mean of 13 observations = 14 Sum of 13 observations 7th observationYou need to login to perform this action.
You will be redirected in
3 sec