Question

the mean of fiest observation is 18 and last 8 observation is 20. if the mean of all 15 observation is 19. find the 8 observation​

Answer 1

aur galio the world to to me at 10 of the aircraft act of class me at the

Answer 2

Answer:

Mean of all 15 observation is 19. Mean of first 8 observation is 18. Mean of last 8 observation is 20. Hence, the 8th observation is 19.

Step-by-step explanation:

Hope This Will Hope You.