Question

[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

0 0
Add a comment Improve this question Transcribed image text
Answer #1

Qus: calculate the following information with the help of given probability density function

Solution

Solution. for 0<x<2 ocy</ f(x, y) = two Raudon varialle lave joint dessity given ly Ke Tax +29) ofw i findk We know that SfflX 2 19 3x² fyly) = (f(x, y jdx Sklaxt 24 sex +hax42, Cox + 2xy]² & com +21244-0-0] fy(4) = 160 6 + 4y (ii) find Ely) Ely)= (g(d) And Marginal dessily * Merginal density of x is fylu) fy(n)= (f(xylly 7 +813x + 2y jely - 417x444491 ófaxxL+ L-0-07 - (3x

Add a comment
Know the answer?
Add Answer to:
[2.5 points] If two random variables have a joint density given by, f(x, y) = k(3x...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • 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))

  • 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

  • 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?

  • Consider the following joint probability density function of the random variables X and Y : 3x−y...

    Consider the following joint probability density function of the random variables X and Y : 3x−y , 1 < x < 3, 1 < y < 2, f(x, y) = 9 0, elsewhere. (a) Find the marginal density functions of X and Y . (b) Are X and Y independent? (c) Find P(X > 2).

  • 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 <...

  • Let X and Y be two continuous random variables having the joint probability density 24xy, for...

    Let X and Y be two continuous random variables having the joint probability density 24xy, for 0 < x < 1,0<p<1.0<x+y<1 0, elsewhere Find the joint probability density of Z X + Y and W-2Y.

  • 6. The joint density of the random variables X and Y is given as F. (...

    6. The joint density of the random variables X and Y is given as F. ( 1 <rsy <3 otherwise i) Find e such that is a valid density function.(8 pts) ii) Set up the calculation for P(X 2.Y > 2). You do not need to compute this value. (5 pts) iii) Find the marginal distribution of X and the marginal distribution of Y. (14 pts) iv) Find E(X) and E(Y)(10 pts) Find ox and of (18 pts) vi) Find...

  • . The joint density of the random variables X and Y is given as c f(x,y)...

    . The joint density of the random variables X and Y is given as c f(x,y) = 1 < x <y <3 otherwise 10, i) Find c such that f(x,y) is a valid density function. ii) Set up the calculation for P(X<2, Y> 2). You do not need to compute this value. iii) Find the marginal distribution of X and the marginal distribution of Y.

  • The joint probability density function for continuous random variables X and Y is given below. f...

    The joint probability density function for continuous random variables X and Y is given below. f (x) =   x + y, 0 < x < 1, 0 < y < 1 if;                                                                          0,         degilse. (a) Show that this is a joint density function. (b) Find the marginal density of X . (c) Find the marginal density of Y . (d) Given Y = y find the conditional density of X . (e) P ( 1/2 < X < 1|Y =...

  • The joint probability density function for continuous random variables X and Y is given below. f...

    The joint probability density function for continuous random variables X and Y is given below. f (x) =   x + y, 0 < x < 1, 0 < y < 1 if;                                                                          0,         degilse. (a) Show that this is a joint density function. (b) Find the marginal density of X . (c) Find the marginal density of Y . (d) Given Y = y find the conditional density of X . (e) P ( 1/2 < X < 1|Y =...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT