If `x_(1), x_(2),…..x_(n)` are n observations such that `Sigmax_(i)^(2)=400 and Sigmax_(i)=80` then the least value of n is

Let x_(1), x_(2),…..,x_(3) be n observations such that Sigmax_(i)^(2)=300 and Sigmax_(1)=90 . Then a possible value of n among the following is

Let x_(1), x_(2),…..,x_(3) be n observations such that Sigmax_(i)^(2)=300 and Sigmax_(1)=90 . Then a possible value of n among the following is

Let x_(1),x_(2),…x_(n) be n observations such that Sigmax_(i)^(2)=500 and Sigmax_(1)=100 . Then, an impossible value of n among the following is

Let x_(1),x_(2),…x_(n) be n observations such that Sigmax_(i)^(2)=500 and Sigmax_(1)=100 . Then, an impossible value of n among the following is

Let x_(1), x_(2), ……., x_(n) be n observations such that sum x_(i)^(2) = 400 and sum x_(i) = 80 . Then a possible value of n among the following is :

Let x_(1), x_(2),….,x_(n) be n observation such that sum(x_(i))^(2)=400 and sumx_(i)=40 , then a possible value of n among the following is

Let x_(1), x_(2),….,x_(n) be n observation such that sum(x_(i))^(2)=400 and sumx_(i)=40 , then a possible value of n among the following is