Видео ютуба по тегу Then The Mean Of The Last Three Observations Is (A) 11 (B) 13 (C) 15 (D) 17

Average Part-02 (13-30) -Dr. R.S. Aggarwal
Average Part-02 (13-30) -Dr. R.S. Aggarwal
"If the mean of 5 observations `x ,\ x+2,\ x+4,\ x+6`and `x+8`is 11, then the mean
"If the mean of 5 observations `x ,\\ x+2,\\ x+4,\\ x+6`and `x+8`is 11, then the mean of the