यदि `sum_(i=1)^(18)(x_(i)-8)=9` तथा `sum_(i=1)^(18)(x_(i)-8)^(2)=45`हो, तो `x_(1),x_(2), ........x_(18)` का मानक विचलन है -

If sum_(i=1)^(18)(x_(i)-8)=9 and sum_(i=1)^(18)(x_(i)-8)^(2)=45 then the standard deviation of x_(1),x_(2),...,x_(18) is

If sum_(i=1)^(n)sin x_(i)=n then sum_(i=1)^(n)cot x_(i)=

If sum_(i=1)^(n)sin x_(i)=n then sum_(i=1)^(n)cot x_(i)=

If sum_(i=1)^(18)(x_(i)-8)=9 and sum_(i=1)^(18)(x_(i)-8)^(2)=45 then find the standard deviation of x_1 , x_2, ....,x_(18)

STATEMENT-1: If sum_(i=1)^(9)(x_(i)-8)=9 and sum_(i=1)^(9)(x_(i)-8)^(2)=45 then s.D.~ of~ x_(1),x_(2),.....,x_(9), is 2. STATEMENT- 2: S.D.is independent of change of origin.

If sum_(i=1)^(18)(x_(i) - 8) = 9 and sum_(i=1)^(18)(x_(i) - 8)^(2) = 45 then find the standard deviation of x_(1), x_(2),….x_(18)

If sum_(i=1)^(2n)cos^(-1)x_(i)=0 , then sum_(i=1)^(2n)x_(i) is :

If sum_(i=1)^(2 n) cos ^(-1) x_(i)=0, then sum_(i=1)^(2 pi) x_(i)=