3. Write the cov(a + bx, c + dY) in terms of var(X), var(Y), and cov(Y,X) (Math proof)

Q: Let X, Y, and Z be random variables, and let Cov(,) denote the covariance operator as usual. Suppose…

A: We want to find  (1) Cov(11Y,4X)= ?  (2)Cov(11Y+3, 4X+8Y)= ?

Q: dx e) J 25+162 25+16x2

A:

Q: Find u v, uu, |v||2, (u v)v, and u. (3v). u = (2, -2, 4), v = (0,7, 4) (a) 2 (b) 24 U. V U u (c)…

A: Given :u=2,-2, 4v=0, 7, 4

Q: The hyperbolic cosine function, denoted by cosh, is defined by the equation cosh(x) = (ex + e-x) (a)…

A:

Q: Proved Ax (BNC) = (AX B)n (AXC) %3D

A:

Q: 4. A stone is thrown vertically upward with an initial velocity, and its height above the ground is…

A:

Q: Use the time/tip data from the table below, which includes data from New York City taxi rides. (The…

A: The regression equation is obtained below as follows: From the information, given that   Thus,

Q: Find (a) * Find ux v, where: (a) u=(1,2,3), v=(4, 5, 6); (b) u=(-4,7,3), v = (6, —-5, 2). (a) [-3,…

A: To find the cross product of the given vectors.

Q: d2/dt2 (21t)

A: In general the second derivative is used to find the acceleration of an object . The second…

Q: Find the exact value of the followihg expressions. Show Work please

A:

Q: giver yn f(५) ५) -2x + 3, + 2, find of ax

A:

Q: Two fair six-sided dice are rolled (one maize and one blue), with outcomes X and Y respectively for…

A: Since the outcome of one die doesn't depend upon the outcome of the other die. The value rolled for…

Q: Find all (p, q, r) such that ((p + -4) evaluates to 1.

A:

Q: Find u v, u u, ||v||², (u · v)v, and u (3v). u = (3, 10), v = (-4, 3) %3D (a) (b) (c) ||v|

A: Since you have asked a question with multiple parts in a single request we would be answering only…

Q: expand (x+y)6

A:

Q: Problem 3. Consider the series on R given by xn 1+ xn n=1 Show that this series converges pointwise…

A:

Q: The slops of (-2,-2) and (2,1)

A: Topic:-  Geometry

Q: Let x = red blood cell (RBC) count in millions per cubic millimeter of whole blood. For healthy…

A: From the provided information, Mean (µ) = 3.8 Standard deviation (σ) = 0.3 X~N (3.8, 0.3)

Q: If Cov(X,Y) = 0, then Var(X+Y) = Var(X-Y). True or False? O True

A: Given that, COVX,Y=0

Q: u = ⟨3, 4⟩, v = ⟨−1, 5⟩ Find         (a) u ∙ v, (b) u ∙ u, (c) ||v ||2 , (d) (u ∙ v)v, and      (e)…

A: Given vectors are u=3,4 and v=-1,5. Given vectors can be written as: u=3i+4j and v=-i+5j. (a)…

Q: AB¯¯¯¯¯¯¯¯AB¯ has endpoints at A(2,6)A(2,6) and B(6,8).

A: GIVEN: A (2, 6) = (x1 , y1) and              B (6, 8) = (x2, y2) TO FIND: equation of the line

Q: Find u•v, V•V, ||u||^2, (u•v)v, and u. (5v). u=(2,0,-3,4), v=(0,5,4,5)

A:

Q: Let X and Y be jointly continuous random variables with joint PDF is given: f X,Y (x.y) (1+x²y)…

A:

Q: Use Giramer Rule to Find ,z -2x + 33-Z = 1 メ+29-2-4 -2x -+7 = -3

A:

Q: a. Using the pairs of values for all 10 points, find the equation of the regression line. b. After…

A: According to the question, in part (a) we have to find the equation of regression line using all the…

Q: QI/ If F = xi+yj+zk find the divF.

A: By see this solution