Fill in blanks
If the mean of `x_1,x_2,…,x_n` is `batx`, then mean of `ax_1,ax_2,…,ax_n` will be _____.`(a!=0)`.

Fill in the blanks If the mean of n numbers x_1,x_2,x_3,….,x_n is barx then the mean of kx_1,kx_2,kx_3,…,kx_n is______.

If the mean of observations x_i, x_2,……., x_n is barx , then the mean of (x_1 + a), (x_2 + a), ….., (x_n + a) is____

Fill in the blanks: If the mean of X_1, X_2 ……. X_10 is barX , then (X_1 - barX) + (X_2 - barX) + …+ (X_(10) - barX) _______.

Let x_1,x_2,……,x_n be n observations, and let barx be their arithimetic mean and sigma^2 be their variance. Statement1: Variance of 2x_1, 2x_2,…..,2x_n is 4 alpha^2 Statement2: Arithmetic mean of 2x_1, 2x_2,…..,2x_n is 4 barx .

If the arithmetic mean of the numbers x_1, x_2, x_3, ..., x_n is barx, then the arithmetic mean of the numbers ax_1 +b, ax_2 +b, ax_3 +b, ....,ax_n +b, where a, b are two constants, would be

If the mean of the set of numbers x_1,x_2, x_3, ..., x_n is barx, then the mean of the numbers x_i+2i, 1 lt= i lt= n is

Fill in the blanks If the eqation ax^2+bx+c=0 is not a quadratic equation then the co-efficient of x^2 is_____.

If the mean of the numbers x_1, x_2, x_3,….x_n is overlinex , then the mean of the numbers x_i+2 , is , where 1 le i le n

Let x_(1), x_(2),….,x_(n) be n observations, and let barx be their arithmatic mean and sigma^(2) be their variance. Statement 1 : Variance of 2x_(1),2x_(2),….,2x_(n) is 4sigma^(2) Statement 2 : Arithmatic mean of 2x_(1), 2x_(2),….,2x_(n) is 4 bar x .

If the values of variable X are x_(1),x_(2),.......x_(n) , then the variance of ax_(1),ax_(2),.......ax_(n) (a is any non-zero real number) is