Suppose that Cov(X, Y ) = 5. What is Cov(3X + 4, 9Y )?

Q: Suppose Cov(X,Y) = 231. What is Cov(8.6X, 3.4Y)?

A: The objective of this question is to find the covariance of the two variables 8.6X and 3.4Y given…

Q: Suppose that Var(X) = 742.23, Var(Y) = 8890.5, and Cov(X,Y) = 2191.72. What is Var(.51X + .49Y)?

A: The objective of the question is to find the variance of the linear combination of two random…

Q: S-メー1)J r8-2) Cx+3) Cx+V)

A: Given,        ∫x2-x-1x-2x+3x+4dx

Q: What is the coefficient of x2y" in (5x- y)°?

A:

Q: solve For B, and B₂ 0 = -22 0 = = 2 2 i=1 Xii lyi - (B₁ Xii + B₂ Xiz)) x ₁₂ (y₁ - (B₁ Xi₁ + B₂ Xiz))

A: Given system of equations0=−2∑i=1nXi1(yi−(β1Xi1+β2Xi2))0=−2∑i=1nXi2(yi−(β1Xi1+β2Xi2))Which can be…

Q: that Var(X) = 727.48, Var(X) = 9536.23, and Cov(

A: Given,           Var(X) = 727.48, Var(Y) = 9536.23, and Cov(X, Y) = 2236.37 To the value of…

Q: Show that In (x+ Vx? + 1) x2 x + Vx2 + 1 dx x + / 2v x² + 1 X + V x2 + v2 +1 + 1 Vx+ 1 x2 + 1

A: This is a derivative problem

Q: 2sin2y=2cosy

A:

Q: tnx Find if u=5 y=

A: The expression of dydxfor the following function needs to be evaluated : y = ln(x)x5

Q: Suppose Cov(X,Y) = 590. What is Cov(1.7X, 3.1Y)?

A: The objective of this question is to find the covariance of the two variables 1.7X and 3.1Y given…

Q: Why do we get cov(y0, y0) instead of cov(yt, yt)

A: Given MA(3) process

Q: Suppose that Var(X) = 861.99, Var(X) = 9517.33, and Cov(X,Y) = 2449.18. What is Var(.37X + .63Y)?

A: Solution

Q: Calculate the length of PQ where P = (-2,1,6) and Q = (-3,4, –1).

A: We will find the length of PQ→ in the following step

Q: Suppose Cov(X,Y) = 419. What is Cov(19X, 71Y)?

A: The objective of this question is to find the covariance of the two variables 19X and 71Y given the…

Q: loga sin (V)|] dz

A: We have to find derivative.