If mean and standard deviation of 5 observation x_{1, }x_{2}, x_{3}, x_{4}, x_{5} are 10 and 3, respectively, then the variance of 6 observation x_{1}, x_{2}, … , x_{5} and −50 is equal to :

Question ID - 56890 | Toppr Answer

If mean and standard deviation of 5 observation x_{1, }x_{2}, x_{3}, x_{4}, x_{5} are 10 and 3, respectively, then the variance of 6 observation x_{1}, x_{2}, … , x_{5} and −50 is equal to :