Letf(x3, x2, x1, x0) =ysuch thaty= 1 if the number of 1’s inx3x2x1x0is odd, andy= 0 otherwise.
1. (20 points) Implementfwith four 2-to-4 decoders at least.
2. (20 points) Implementfwith a 4-to-1 multiplexer with selection inputsx1, x2(in this order).
//This is a question for computer Architecture 1; Digital design
Letf(x3, x2, x1, x0) =ysuch thaty= 1 if the number of 1’s inx3x2x1x0is odd, andy= 0...
1. Suppose that X1, X2, and X3 E(X1) = 0, E(X2) = 1, E(X3) = 1, Var(X1) = 1, Var(X2) = 2, Var(X3) = 3, Cov(X1, X2) = -1, Cov(X2, X3) = 1, where X1 and X3 are independent. a.) Find the covariance cov(X1 + X2, X1 - X3). b.) Define U = 2X1 - X2 + X3. Find the mean and variance of U.
A Markov chain X0, X1, X2,... has transition matrix 012 0 0.3 0.2 0.5 P = 1 0.5 0.1 0.4 .2 0.3 0.3 0.4 (i) Determine the conditional probabilities P(X1 = 1,X2 = 0|X0 = 0),P(X3 = 2|X1 = 0). (ii) Suppose the initial distribution is P(X0 = 1) = P(X0 = 2) = 1/2. Determine the probabilities P(X0 = 1, X1 = 1, X2 = 2) and P(X3 = 0). 2. A Markov chain Xo, Xi, X2,. has...
Determine whether the system is consistent 1) x1 + x2 + x3 = 7 X1 - X2 + 2x3 = 7 5x1 + x2 + x3 = 11 A) No B) Yes Determine whether the matrix is in echelon form, reduced echelon form, or neither. [ 1 2 5 -7] 2) 0 1 -4 9 100 1 2 A) Reduced echelon form B) Echelon form C) Neither [1 0 -3 -51 300 1-3 4 0 0 0 0 LOO 0...
Q3. (Dual Simplex Method) (2 marks) Use the dual Simplex method to solve the following LP model: max z= 2x1 +4x2 +9x3 x1 x2 x3 S 1 -x1+ X2 +2x3 S -4 x2+ X1,X2,X3 S 0 Q3. (Dual Simplex Method) (2 marks) Use the dual Simplex method to solve the following LP model: max z= 2x1 +4x2 +9x3 x1 x2 x3 S 1 -x1+ X2 +2x3 S -4 x2+ X1,X2,X3 S 0
In a Portfolio Selection problem, let X1, X2 and 3 represent the number of shares purchased for stocks 1, 2 and 3, which have selling prices of $45, $15 and $100 respectively. The returns on investment for stocks 1, 2 and 3 are 10%, 8%, and 13% of the amount of money invested respectively The investor has up to $40,000 to invest. One appropriate constraint would be: Select one: O a. 45x1 + 15x2 + 100x3 s 40,000; O b....
Given the LPP: Max z=-2x1+x2-x3 St: x1+x2+x3<=6 -x1+2x2<=4 x1,x2<=0 What is the new optimal, if any, when the a) RHS is replaced by [3 4] b) Column a2 is changed from[1 2] to [2 5] c) Column a1 is changed from[1 -1] to [0 -1] d) First constraint is changed to x2-x3<=6 ? e) New activity x6>=0 having c6=1 and a6=[-1 2] is introduced ?
Determine the number of integer solutions of x1 + x2 + x3 + x4-32, where a) xi 2 0, 1 3is4 b) x1, x2 2 2, x3, X4 2 1
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).
In a model, x120 and integer, x2 20, and x3 20 and integer. Which solution would not be feasible? O x1 1x2 0.5 x3 0 O x1 -3 x2 2 x3 1 O x1 2.5 x2 1.5 x3 2 x1 2 x2 2.5 x3 3 In a model, x120 and integer, x2 20, and x3 20 and integer. Which solution would not be feasible? O x1 1x2 0.5 x3 0 O x1 -3 x2 2 x3 1 O x1 2.5...
Find the number of solutions to x1 + x2 + x3 + x4 = 200 subject to xi E 220 (1 < i < 4) and x3, x4 < 50 in two ways: (i) by using the inclusion-exclusion principle, and (ii) using generating functions.