Question

54.If the mean of the observations x,x + 3, x + 5;X +7,x + 10 is 9, Find mean of
last three numbers.
* +, 5;​

Answer 1

Answer:

Step-by-step explanation:

If the mean of the observation x, x+3, x+5, x+7 and x+10 is 9, then mean of the last three observations is x, x+3, x+7 and x+10 is 9, the mean of last three observations is 1113