The interval `[0, 4]` is divided into n equal sub-intervals by the points `x_0,x_1,x_2,....,x_(n-1),x_n` where `0=x_0 < x_1 < x_2 < x_3 <.........< x_n=4.` If `deltax=x_(i-1)` for `i=1,2,3......,n,` then `lim_(deltax->0) sum_(i-1)^n x_i deltax` is

The interval [0,4] isdivided into n equal sub-intervals by the points x_(0),x_(1),x_(2),…,x_(n-1),x_(n)"where" 0=x_(0)ltx_(1)ltx_(2)ltx_(3)lt…ltx_(n)=4 If deltax=x_(i)-x_(i-1)"for"i=1,2,3,...,n, "then"lim_(deltaxrarr0)sum_(i-1)^(n)x_(i)deltax is equal to

The interval [0,4] isdivided into n equal sub-intervals by the points x_(0),x_(1),x_(2),…,x_(n-1),x_(n)"where" 0=x_(0)ltx_(1)ltx_(2)ltx_(3)lt…ltx_(n)=4 If deltax=x_(i)-x_(i-1)"for"i=1,2,3,...,n, "then"lim_(deltaxrarr0)sum_(i-1)^(n)x_(i)deltax is equal to

The standard deviation of n observations x_(1),x_(2),......,x_(n) is 2. If sum_(i=1)^(n)x_(i)=20 and sum_(i=1)^(n)x_(i)^(2)=100 then n is

The mean and variance of n observations x_(1),x_(2),x_(3),...x_(n) are 5 and 0 respectively. If sum_(i=1)^(n)x_(i)^(2)=400 , then the value of n is equal to

The mean and variance of n observations x_(1), x_(2), x_(3),……..,x_(n) are 5 and 0 respectively. If sum_(i=1)^(n) x_(i)^(2) = 400 , then the value of n is equal to

The means and variance of n observation x_1, x_2, x_3,....x_n are 5 and 0 respectively . If sum_(i=1)^(n) x_(i)^(2) = 400 , then find the value of n

The means and variance of n observations x_(1),x_(2),x_(3),…x_(n) are 0 and 5 respectively. If sum_(i=1)^(n) x_(i)^(2) = 400 , then find the value of n

The means and variance of n observations x_(1),x_(2),x_(3),…x_(n) are 0 and 5 respectively. If sum_(i=1)^(n) x_(i)^(2) = 400 , then find the value of n

If barx=1/n sum_(i=1)^n x_i then prove that sum_(i=1)^n (x_i-barx)=0