Question
Determine whether E[X|X>2] + E[Y|X>2] can always be combined to form E[X+Y| X>2] or not. Give...
Determine whether E[X|X>2] + E[Y|X>2] can always be combined to form E[X+Y| X>2] or not. Give clear reasoning for full marks.
Homework Answers
Answer #1
Let Z = X + Y
Let Rx, Ry, Rz be the regions over which x, y, z are defined/
Given X > 2, the conditional distribution of Z = X + Y will be different than the conditional distribution of X and Y,
Thus, E[X|X>2] + E[Y|X>2] cannot always be combined to form E[X+Y| X>2]
Not the answer you're looking for?
Similar Questions
Consider two random variables, X and Y, with joint PDF fxy(x,y)=e-2|y-x^2|-x x>=0 , y can...
Consider two random variables, X and Y, with joint PDF
fxy(x,y)=e-2|y-x^2|-x x>=0
, y can be any value
fxy(x,y)=0 otherwise
(1) Determine fY|X(y|x)
(2)Determine E[Y|X=x]
can someone give me a brief clear explanation as to why (∃x)(∀y) P(x,y) and (∀y)(∃x)P(x,y) would...
can someone give me a brief clear explanation as to why (∃x)(∀y)
P(x,y) and (∀y)(∃x)P(x,y) would have different truth values? please
can you type the answer not write it in a picture.
Find a formula for a curve of the form y = e − ( x −...
Find a formula for a curve of the form y = e − ( x − a ) 2 / b
for b>0 with a local maximum at x=2 and points of inflection at
x=−1 and x=5
give the equation of this parametric curve in Cartesian form. x= t^2 -t , y =...
give the equation of this parametric curve in Cartesian form.
x= t^2 -t , y = 5-3t , -3 <_ t <_ 4
E[X] = 2, E[X^2] = 8, E[Y] = 8, E[Y^2] = 100, and Var(X +Y) =...
E[X] = 2, E[X^2] = 8, E[Y] = 8, E[Y^2] = 100, and Var(X +Y) =
60. What is ρ(X, Y ), the correlation of X and Y
Write these equations in explicit form: x' = x^(2) - t^(2) y' = sin(y) mr' +...
Write these equations in explicit form:
x' = x^(2) - t^(2)
y' = sin(y)
mr' + rm + e^(m+r) = 0
1. Determine a formula for the exponential function of the form y=C·b^x that passes through the...
1. Determine a formula for the exponential function of the form
y=C·b^x that passes through the points (?1, 4) and (2, 256). If
necessary, round the value of b to one decimal place.
A)
y=4·64^x
B)
y=4·8^x
C)
y=16·8^x
D)
y=4·84^x
E)
y=16·4^x
5.1.8 Determine the value of c that makes the function f(x, y) = c(x + y)...
5.1.8 Determine the value of c that makes the function f(x, y) =
c(x + y) a joint probability density function over the range 0 <
x < 3 and x < y < x + 2. c = (give the exact answer in the
form of fraction) Determine the following. Round your answers in
a-f to four decimal places.
a. P(X < 1, Y < 2) =
b. P(1 < X < 2) =
c. P(Y > 1) =...
Write these equations in explicit form x' = x^(2) - t^(2) y' = sin(y) mr' +...
Write these equations in explicit form
x' = x^(2) - t^(2)
y' = sin(y)
mr' + rm + e^(m+r) = 0
Thanks in advance!
Consider the function f(x,y)= (x+2*y)*e^(x-2y) for all real values (x,y). Determine the linearization to f at...
Consider the function f(x,y)= (x+2*y)*e^(x-2y) for all real
values (x,y).
Determine the linearization to f at the point (2,1)
Use the linearization to approximate f(2.1,1.1)
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 53 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 2 hours ago
asked 2 hours ago
asked 3 hours ago
asked 3 hours ago
asked 3 hours ago
asked 3 hours ago
asked 3 hours ago
asked 4 hours ago