

Q1. Draw the block diagrams for the following: a) y = 3x1 + x2 – X1...
Consider random variables X and Y with the joint pdf fx1,x2(x1,x2) = 3x1, 0 < x2 < x1 <1. Calculate P(X2 < 1/2 | X1 >= 3/4)
Consider the following LP max z=3x1+x2 s.t. −2x1 + x2 ≤ 3 x1 + 2x2 ≤ 5 x1,x2 ≥0 (a) Find the dual (or shadow) prices of the binding constraints (b) Find the dual (or shadow) prices of the binding “dual” constraints.
Solve the following linear programming model graphically: maximize Z=3x1+6x2 subject to 3x1+2x2≤18 x1+x2≥5 x1≤4 x1, x2≥0
For the given set of equations, Draw an all-integrator block diagram for equation (2), a. b. Starting with the all-integrator block diagram from Part (a), incorporate equation (1) into an all-integrator block diagram that consists of two integrators, Using the block diagram from Part (b), create an all-integrator block diagram that relates C. u(t), x (t), and x2(t) with y(t), where y(t) obeys the linear relationship in equation (3) d. Use the block diagram from Part (c) to find the...
Consider the following. Xi' = 3x1 - 2x2 x1(0) = 3 xz' = 2x1 – 2x2, *2(0) = (a) Transform the given system into a single equation of second order by solving the first equation for x2 and substitute into the second equation, thereby obtaining a second order equation for X1. (Use xp1 for xı' and xpP1 for x1".) xpP1 – xP1 – 2x1 = 0 (b) Find X1 and x2 that also satisfy the initial conditions. *2(t) =
6. Suppose random variables X1, X2, X3 have the following properties: E(X1) = 1; E(X2) = 2; E(X3) = −1 V(X1) = 1; V(X2) = 3; V(X3) = 5 COV (X1,X2) = 7; COV (X1,X3) = −4; COV (X2,X3) = 2 Let U = X1 −2X2 + X3 and W = 3X1 + X2. (a) Find V(U) (b) Find COV (U,W).
Let X1, X2, X3 be independent random variables with E(X1) = 1, E(X2) = 2 and E(X3) = 3. Let Y = 3X1 − 2X2 + X3. Find E(Y ), Var(Y ) in the following examples. X1, X2, X3 are Poisson. [Recall that the variance of Poisson(λ) is λ.] X1, X2, X3 are normal, with respective variances σ12 = 1, σ2 = 3, σ32 = 5. Find P(0 ≤ Y ≤ 5). [Recall that any linear combination of independent normal...
Consider the following LP problem. MAX: 9X1-8X2 Subject to: x1+x2≤6 -x1+x2≤3 3x1-6x2≤4 x1,x2≥0 Sketch the feasible region for this model. What is the optimal solution? What is the optimal solution if the objective function changes to Max.-9x1+8x2?
Yam has the following utility function for Apples (X1) and Ice Cream (X2) U(X1,X2) = Min{3X1,X2}. Draw Yam’s indifference curves when she consumes 1 and 2 apples. Derive Yam’s demand functions for Apples and Ice Cream. Suppose Yam has an income of M = $120 and the prices of Apples and Ice Cream are p1 =$1, p2 =$1. What is Yam’s optimal consumption of Apples and Ice Cream? Suppose a quantity tax of $1 is imposed on Apples. Separate out the...
Q1 Write the following function in terms of unit step functions. Hence, find its Laplace transform 10<tsI g(t) = le-3, +1 , 1<t 2 .22 Q2 Use Laplace transform to solve the following initial value problem: yty(o)-0 and y (0)-2 A function f(x) is periodic of period 2π and is defined by Q3 Sketch the graph of f(x) from x-2t to2 and prove that 2sinh π11 f(x)- Q4 Consider the function f(x)=2x, 0<x<1 Find the a Fourier cosine series b)...