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These questions are totally different. They are not sub part of each other. So, i can solve only one of them. Here the answer of Question-2 which is more clearly visible to me.
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Between 1 76% 11:44 PM learn-us-east-1-prod-fleet01-xyth Done 1 of 3 Extra-Credit-Quiz Math 309 Summer 2019 This...
[2.5 points] If two random variables have a joint density given by, f(x, y) = k(3x...
[2.5 points] If two random variables have a joint density given by, f(x, y) = k(3x + 2y) 0 for 0 < x < 2, 0 < y < 1 elsewhere (a) Find k (b) Find the Marginal density of Y. (c) Find E(Y) (d) Find marginal density X. (e) Find the probability, P(X < 1.3). (f) Evaluate fı(x|y); (g) Evaluate fi(x|(0.75))
5. If two random variables X and Y have the joint density k(52+2y2) for 0<<2 0...
5. If two random variables X and Y have the joint density k(52+2y2) for 0<<2 0 <y< 1 f(r, y) elsewhere (a) Find k (b) Find P(0<x< 1, 0<Y<0.5) (c) Find marginal density fi(a) and f2(y) (d) Are X and Y independent? (e) Find E(X) () Find P(X2 0.5). expression for fi(x|y); (g) an
I only need the answers to (e), (f) and (g) [2.5 points] If two random variables...
I only need the answers to (e), (f) and (g)
[2.5 points] If two random variables have a joint density given by, f(x, y) = k(3x + 2y) 0 for 0 < x < 2, 0 < y < 1 elsewhere (a) Find k (b) Find the Marginal density of Y. (c) Find E(Y) (d) Find marginal density X. |(e) Find the probability, P(X < 1.3). (f) Evaluate f1(x|y); (g) Evaluate fı(x|(0.75))
1. Suppose the joint density of X and Y is given by f(x,y) = 6e-3x-2y, if...
1. Suppose the joint density of X and Y is given by f(x,y) = 6e-3x-2y, if 0 < x < inf., 0 < y < inf, 0 elsewhere. Part A, Find P( X < 2Y) Part B, Find Cov(X,Y) Part C, Suppose X and Y have joint density given by f(x,y) = 24xy, when 0<= x <=1, 0 <= y <=1, 0 <= x+y <=1, and 0 elsewhere. Are X and Y independent or dependent random variables? why?
(1 point) 3. Let X and Y be random variables with a joint probability density function...
(1 point) 3. Let X and Y be random variables with a joint probability density function f(z, y)e (a)Find the marginal distribution functions of X and Y, respectively. i.e. Find f(z) and f(y) f(x)- elsewhere (b) Identify the distribution of Y. What is the E(Y) and SD(Y) E(Y)- (c) Are X and Y independent random variables? Show why, or why not (d) Find P(1 X 2|Y 1) E SD(Y)-
The joint probability density function of the random variables X, Y, and Z is (e-(x+y+z) f(x,...
The joint probability density function of the random variables X, Y, and Z is (e-(x+y+z) f(x, y, z) 0 < x, 0 < y, 0 <z elsewhere (a) (3 pts) Verify that the joint density function is a valid density function. (b) (3 pts) Find the joint marginal density function of X and Y alone (by integrating over 2). (C) (4 pts) Find the marginal density functions for X and Y. (d) (3 pts) What are P(1 < X <...
the answer should be 1/2y^2 3. Suppose the joint density of X and Y is defined...
the answer should be 1/2y^2
3. Suppose the joint density of X and Y is defined by if 0<r<y< 1 f(x,y)= elsewhere. What is E (X2Y = ) ?
A step by step solution 3. Suppose X and Y are random variables with joint probability...
A step by step solution
3. Suppose X and Y are random variables with joint probability density function of the form f(x,y)- Kre+2, for a 20; and y 20 and zero elsewhere (a) Find the value of K? (b) Compute Cov(X, Y) (c) Find E[XYa] MA
math stat
The management at a fast-food outlet is interested in the joint behavior of the randomvariables Y1 , defined as the total time between a customer’s arrival at the store and departurefrom the service window, and Y2 , the time a customer waits in line before reaching the servicewindow. Because Y1 includes the time a customer waits in line, we must have Y Y 1 2 ≥ . Therelative frequency distribution of observed values of Y1 and Y2 can be modeled...
The joint probability density function is f(x, y) for 17. Find the mean of X given...
The joint probability density function is f(x, y) for 17. Find the mean of X given Y = random variables X and Y fax, y) = f(xy *** Q<x<10<x<1 Elsewhere w 14. Random variables X and Y have a density function f(x, y). Find the indicated expected value f(x, y) = 6; (xy+y4) 0<x< 1,0<y<1 0 Elsewhere E(x2y) = 15. The means, standard deviations, and covariance for random variables X, Y, and Z are given below. Lex= 3, uy =...
[2.5 points] If two random variables have a joint density given by, f(x, y) = k(3x + 2y) 0 for 0 < x < 2, 0 < y < 1 elsewhere (a) Find k (b) Find the Marginal density of Y. (c) Find E(Y) (d) Find marginal density X. (e) Find the probability, P(X < 1.3). (f) Evaluate fı(x|y); (g) Evaluate fi(x|(0.75))
5. If two random variables X and Y have the joint density k(52+2y2) for 0<<2 0 <y< 1 f(r, y) elsewhere (a) Find k (b) Find P(0<x< 1, 0<Y<0.5) (c) Find marginal density fi(a) and f2(y) (d) Are X and Y independent? (e) Find E(X) () Find P(X2 0.5). expression for fi(x|y); (g) an
I only need the answers to (e), (f) and (g)
[2.5 points] If two random variables have a joint density given by, f(x, y) = k(3x + 2y) 0 for 0 < x < 2, 0 < y < 1 elsewhere (a) Find k (b) Find the Marginal density of Y. (c) Find E(Y) (d) Find marginal density X. |(e) Find the probability, P(X < 1.3). (f) Evaluate f1(x|y); (g) Evaluate fı(x|(0.75))
(1 point) 3. Let X and Y be random variables with a joint probability density function f(z, y)e (a)Find the marginal distribution functions of X and Y, respectively. i.e. Find f(z) and f(y) f(x)- elsewhere (b) Identify the distribution of Y. What is the E(Y) and SD(Y) E(Y)- (c) Are X and Y independent random variables? Show why, or why not (d) Find P(1 X 2|Y 1) E SD(Y)-
The joint probability density function of the random variables X, Y, and Z is (e-(x+y+z) f(x, y, z) 0 < x, 0 < y, 0 <z elsewhere (a) (3 pts) Verify that the joint density function is a valid density function. (b) (3 pts) Find the joint marginal density function of X and Y alone (by integrating over 2). (C) (4 pts) Find the marginal density functions for X and Y. (d) (3 pts) What are P(1 < X <...
the answer should be 1/2y^2
3. Suppose the joint density of X and Y is defined by if 0<r<y< 1 f(x,y)= elsewhere. What is E (X2Y = ) ?
A step by step solution
3. Suppose X and Y are random variables with joint probability density function of the form f(x,y)- Kre+2, for a 20; and y 20 and zero elsewhere (a) Find the value of K? (b) Compute Cov(X, Y) (c) Find E[XYa] MA
The joint probability density function is f(x, y) for 17. Find the mean of X given Y = random variables X and Y fax, y) = f(xy *** Q<x<10<x<1 Elsewhere w 14. Random variables X and Y have a density function f(x, y). Find the indicated expected value f(x, y) = 6; (xy+y4) 0<x< 1,0<y<1 0 Elsewhere E(x2y) = 15. The means, standard deviations, and covariance for random variables X, Y, and Z are given below. Lex= 3, uy =...
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