If both the mean and the standard deviation of 50 observatios `x_(1), x_(2),….x_(50)` are equal to 16, then the mean of `(x_(1)-4)^(2), (x_(2)-4)^(2),….,(x_(50)-4)^(2)` is

If both the mean and the standard deviation of 50 observations x_(1), x_(2),…, x_(50) are equal to 16, then the mean of (x_(1) -4)^(2), (x_(2) -4)^(2), …., (x_(50) - 4)^(2) is k. The value of (k)/(80) is _______.

If both the mean and the standard deviation of 50 observations x_(1), x_(2),…, x_(50) are equal to 16, then the mean of (x_(1) -4)^(2), (x_(2) -4)^(2), …., (x_(50) - 4)^(2) is k. The value of (k)/(80) is _______.

If the mean and standard deviation of 10 observations x_(1),x_(2),......,x_(10) are 2 and 3 respectively,then the mean of (x_(1)+1)^(2),(x_(2)+1)^(2),....,(x_(10)+1)^(2) is equal to

If both the standard deviation and mean of data x_(1),x_(2),x_(3),……x_(50) are 16, then the mean of the data set ( x_(1)-4)^(2),(x_(2)-4)^(2),(x_(3)-4)^(2),….(x_(50)-4)^(2) is

If both the standard deviation and mean of data x_(1),x_(2),x_(3),......x_(50) are 16, then the mean of the data set (x_(1)-4)^(2),(x_(2)-4)^(2),(x_(3)-4)^(2),...(x_(50)-4)^(2) is

If the mean and standard deviation of 5 observations x_(1),x_(2),x_(3),x_(4),x_(5) are 10 and 3 respectively,then the variance of 6 observations x_(1),x_(2),x_(3),x_(4),x_(5) and 50 is equal to

The mean and standard deviation of five observations x_(1),x_(2),x_(3),x_(4),x_(5) and are 10 and 3 respectively,then variance of the observation x_(1),x_(2),x_(3),x_(4),x_(5),-50 is equal to (a) 437.5 (b) 507.5 (c) 537.5 (d) 487.5

The mean and standard deviation of 10 observations x_(1), x_(2), x_(3)…….x_(10) are barx and sigma respectively. Let 10 is added to x_(1),x_(2)…..x_(9) and 90 is substracted from x_(10) . If still, the standard deviation is the same, then x_(10)-barx is equal to

The mean and standard deviation of 10 observations x_(1), x_(2), x_(3)…….x_(10) are barx and sigma respectively. Let 10 is added to x_(1),x_(2)…..x_(9) and 90 is substracted from x_(10) . If still, the standard deviation is the same, then x_(10)-barx is equal to