The mean of a observationis 26. If mean of the first five observations is 28 and that of the last five is 24, find the fifth observation.
Refer the following link for the answer similar toyour query :
https://www.meritnation.com/ask-answer/question/the-mean-of-the-15-observations-is-28-if-the-mean-of-first/statistics/10866097
https://www.meritnation.com/ask-answer/question/the-mean-of-the-15-observations-is-28-if-the-mean-of-first/statistics/10866097