5. Let X, Y be iid random variables each with density fx(x) = for x > 1 and zero otherwise. (a) (b) Find the density of Z = Y/X. Find E[√Z].

Q: Q1) Discrete joint variables X and Y with probability density f(x,y) (pdf) are given in this table.…

A: The joint probability distribution of X and Y is f(x,y)   1       2       31           1/4    1/4…

Q: 9. If X, Y have some bivariate density, prove that Var(X – Y) = Var(X)+Var(Y) – 2Cov(X,Y).

A: We have given that X and Y are random variables having some bivariate density.

Q: Suppose that the random variable X has density fx (x) = 4x³ for 0 X).

A: Independence of pdf applied.

Q: Let X and Y be random variables with joint density f(x, y) = (x - y) if x = [0, 1], y € [-1, 0]…

A: The conditional probability is defined as :   P(X|Y) = P(X,Y=y)P(Y=y)

Q: 3. Let X be a continuous random variable. Let f(x) = c(x − 1)³ and Sx = [1,3]. Hint: (x - 1)³ = x³ +…

A:

Q: Find the density of X = max(Y1,Y2), where Y1 and Y2 are independent random variables with densities…

A: It is an important part of statistics . It is widely used .

Q: Suppose that the random variable X has density ƒx (x) = 4x³ for 0 4X).

A:

Q: Let X1, X2, ..., X, be independent random variables with the random variable X; having density…

A:

Q: Let X₁ |Z| where Z N (0, 1) and X₂ variables. Let Y₁ = X² + X², Y₂ = X₁. Find the joint density of…

A:

Q: (c) Find the marginal distribution of X and Y. (d) What is Cov(X,Y)? (e) Find the probability…

A: Here we have given the joint probability density function of random variables x and y. We have to…

Q: 6) The random variables X and Y have joint density f( x, y) = x2.y2 for 1sx, 1sy and f( x, y) = 0…

A: The given function is: fx,y=1x2y2           x≥1 , y≥1   Given data: u=xy    and v=x·y   Thus,…

Q: (3) Find the density of Y = X² when X ~ Binomial(4, ). The following answers are proposed: (a) P(Y =…

A:

Q: e joint density of X and Y is given by, fxr (x, y) = (x² + 0 1) b) Find the marginal probability…

A: It is an important part of statistics. It is widely used.

Q: Consider the random variable X with PDF f(x) = e−x / (1 + e−x)2 , x ∈ R.

A: From the given information,the random variable X has pdf is,

Q: Determine the value of c that makes the function f(x, y) = c(x + y) a joint probability mass…

A: f(x,y)=c(x+y)   ; x=1,2,3 and y=1,2,3

Q: What is the joint probability density function f₁,2 of Y₁ = X₁/X₂ and Y₂ = X₂?

A: We will use Jacobian method of transformation to find the joint probability of Y1 and Y2.

Q: The number of minutes that train is early or late can be modeled by a random variable whose density…

A: Given the density function for the random variable, the number of minutes that train is early or…

Q: Let X be a continuous random variable with density function be-bx for a > 0 otherwise , f(x) = where…

A: Introduction: Exponential Distribution:  The exponential distribution is also called a waiting…