My Math Forum

My Math Forum (http://mymathforum.com/math-forums.php)
-   Advanced Statistics (http://mymathforum.com/advanced-statistics/)
-   -   Normal distribution with 2 random variables (http://mymathforum.com/advanced-statistics/12911-normal-distribution-2-random-variables.html)

callkalpa May 17th, 2010 07:47 AM

Normal distribution with 2 random variables
 
hi all,

will anyone help me to work this sum out?

If X and Y are independent normal variables having a common mean ? such that

P(2X + 4Y <= 10) + P(3X + Y <=9) = 1 and
P(2X - 4Y <= 6) + P(Y - 3X >= 1) = 1

Determine the value of ? and the ratio of the variance of X and Y.


All times are GMT -8. The time now is 02:52 PM.

Copyright © 2018 My Math Forum. All rights reserved.