Question

the value of r.
10 pair of observations of variable x and y, Cov(x, y) = 3s, = 58, = 120, then what is the valu
(Ans. : r = 0.5, ry.)
then what is the value of r by. v) ?
5
24.
Ifr=-0.40: S = 25, 3 = 16, then find out the value of Cov(x, y).
3.
y-15
? If y = 2r + 5 and v =
(Ans. : Cov(x, y,
25​

Answer 1

If x and y are matrices then the covariances (or correlations) between the columns of x and the ... Correlation, Variance and Covariance (Matrices) ... If use is "everything" , NA s will propagate conceptually, i.e., a resulting value will be NA ... of variables is computed using all complete pairs of observations on those variables.