Which one of the following inequality is correct a1, a2, a3, - - - - - - , an be real numbers? (use Tchebychef's inequality)

Question

TuteeHUB · Accepted Answer

$(a_1+a_2+a_3----+a_n)^2>,n(a_1^2+a^2_2+----+a_n^2)$

TuteeHUB · Answer

$(a_1+a_2+----+a_n)^2\le,n(a_1^2+a^2_2+----+a_n^2)$

TuteeHUB · Answer

$(a_1+a_2+a----+a_n)^2>,(n-1)(a_1^2+a^2_2+----+a_n^2)$

TuteeHUB · Answer

$(a_1+a_2+----+a_n)^2\le,(n-1)(a_1^2+a^2_2+----+a_n^2)$

1.	Which one of the following inequality is correct a1, a2, a3, - - - - - - , an be real numbers? (use Tchebychef's inequality)
A.	\((a_1+a_2+----+a_n)^2\le,n(a_1^2+a^2_2+----+a_n^2)\)
B.	\((a_1+a_2+a_3----+a_n)^2>,n(a_1^2+a^2_2+----+a_n^2)\)
C.	\((a_1+a_2+a----+a_n)^2>,(n-1)(a_1^2+a^2_2+----+a_n^2)\)
D.	\((a_1+a_2+----+a_n)^2\le,(n-1)(a_1^2+a^2_2+----+a_n^2)\)
Answer» B. \((a_1+a_2+a_3----+a_n)^2>,n(a_1^2+a^2_2+----+a_n^2)\)

Discussion