What is the answer? Please help
Please help with this question. let x be a random variable with gamma distribution (α, β) and conditional distribution from X given Y=λ is poisson with mean λ. Find the conditional distribution from Y given X=x.
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3. Let Xi, , Xn be a random sample from a Poisson distribution with p.m.f Assume...
3. Let Xi, , Xn be a random sample from a Poisson distribution with p.m.f Assume the prior distribution of Of λ is is an exponential with mean 1, i.e. the prior pdi g(A) e-λ, λ > 0 Note that the exponential distribution is a special gamma distribution; and a general gamma distribution with parameters α > 0 and β > 0 has the pd.f. h(A; α, β)-16(. otherwise Also the mean of a gamma random variable with the pd.f.h(Χα,...
Please answer the question clearly. Consider a random sample of size n from a Poisson population...
Please answer the question clearly.
Consider a random sample of size n from a Poisson population with parameter λ (a) Find the method of moments estimator for λ. (b) Find the maximum likelihood estimator for λ. Suppose X has a Poisson distribution and the prior distribution for its parameter A is a gamma distribution with parameters and β. (a) Show that the posterior distribution of A given X-x is a gamma distribution with parameters a +r and (b) Find the...
please help me! Thanks in advance :) 5. Let N be a Poisson random variable with...
please help me! Thanks in advance :)
5. Let N be a Poisson random variable with parameter λ Suppose ξ1S2, is a sequence of 1.1.d. random variables with mean μ and variance σ2, independent of N. Let SN-ξι 5N. Determi ne the me an and variance of Sw. 6. Let X, Y be independent random variables, each having Exponential(A) distribution. What is the conditional density function of X given that Z =
Having troubles with question 2. Please help 2. If X has a Gamma distribution with parameters...
Having troubles with question 2. Please help
2. If X has a Gamma distribution with parameters a and B, then its mgf is given by (a) Obtain expressions for the moment-genérating functions of an exponential random variable and of a chi-square random variable by recognizing that these are special cases of a Gamma distribution and using the mgf given above. (b) Suppose that X1 is a Gamma variable with parameters α1 and β, X2 is a Gamma variable with parameters...
6. (a) Given that X and Y are continuous random variables, prove from first principles that:...
6. (a) Given that X and Y are continuous random variables, prove from first principles that: (b) The random variable X has a gamma distribution with parameters-: 3 and A-2 . Y is a related variable with conditional mean and variance of =x)= Calculate the unconditional mean and standard deviation of Y. (c) Suppose that a random variable X has a standard normal distribution, and the conditional distribution of a Poisson random variable Y, given the value ol XOx, has...
The Poisson distribution is a useful discrete distribution which can be used to model the number ...
PROBABILITY QUESTION
The Poisson distribution is a useful discrete distribution which can be used to model the number of occur rences of something per unit time. If X is Poisson distributed, i.e. X Poisson(λ), its probability mass function takes the following form: oisson distributed, i.e. X - Assume now we have n identically and independently drawn data points from Poisson(A) :D- {r1,...,Xn Question 3.1 [5 pts] Derive an expression for maximum likelihood estimate (MLE) of λ. Question 3.2 5pts Assume...
Let X Have a poisson distribution with parameter m. if m is an experimental value of...
Let X Have a poisson distribution with parameter m. if m is an experimental value of a random variable having gamma distribution with α =2 and β=1, compute P(X=0,1,2)
Two questions exist : ) if it has pdf. A railon variable X has the l'areio distril illi ribution with parameters m, a (m, α > 0 w 0 otherwise Show that if X has this Pareto distribution, then...
Two questions exist :
) if it has pdf. A railon variable X has the l'areio distril illi ribution with parameters m, a (m, α > 0 w 0 otherwise Show that if X has this Pareto distribution, then the random variable log(X/m) has the expo- nential distribution with parameter α Let X ~ Gamma(α, β), where α > 1 . Find E[1/X].
) if it has pdf. A railon variable X has the l'areio distril illi ribution with parameters...
6. The Poisson distribution is commonly used to model discrete data. The probability mass function of...
6. The Poisson distribution is commonly used to model discrete data. The probability mass function of a Poisson random variable is P(X = x/A) =ー厂 , x = 0, 1, 2, , λ > 0. a. Find the MGF of a Poisson random variable. b. Use the MGF to find the mean of a Poisson random variable c. Use the MGF to find the second raw moment of a Poisson random variable. d. Use results d. Let Xi and X2...
3. Let Xi,... , Xio be a random sample of size 10 from a gamma distribution...
3. Let Xi,... , Xio be a random sample of size 10 from a gamma distribution with α--3 and β 1/e. The prior distribution of θ is a gamma distribution with α-10 and B-2. Recall that the gamma density is given by elsewhere, (a) Find the posterior distribution of θ (b) If we observe 17, use the mean of the posterior distribution to give a point estimate of θ.
3. Let Xi, , Xn be a random sample from a Poisson distribution with p.m.f Assume the prior distribution of Of λ is is an exponential with mean 1, i.e. the prior pdi g(A) e-λ, λ > 0 Note that the exponential distribution is a special gamma distribution; and a general gamma distribution with parameters α > 0 and β > 0 has the pd.f. h(A; α, β)-16(. otherwise Also the mean of a gamma random variable with the pd.f.h(Χα,...
Please answer the question clearly.
Consider a random sample of size n from a Poisson population with parameter λ (a) Find the method of moments estimator for λ. (b) Find the maximum likelihood estimator for λ. Suppose X has a Poisson distribution and the prior distribution for its parameter A is a gamma distribution with parameters and β. (a) Show that the posterior distribution of A given X-x is a gamma distribution with parameters a +r and (b) Find the...
please help me! Thanks in advance :)
5. Let N be a Poisson random variable with parameter λ Suppose ξ1S2, is a sequence of 1.1.d. random variables with mean μ and variance σ2, independent of N. Let SN-ξι 5N. Determi ne the me an and variance of Sw. 6. Let X, Y be independent random variables, each having Exponential(A) distribution. What is the conditional density function of X given that Z =
Having troubles with question 2. Please help
2. If X has a Gamma distribution with parameters a and B, then its mgf is given by (a) Obtain expressions for the moment-genérating functions of an exponential random variable and of a chi-square random variable by recognizing that these are special cases of a Gamma distribution and using the mgf given above. (b) Suppose that X1 is a Gamma variable with parameters α1 and β, X2 is a Gamma variable with parameters...
6. (a) Given that X and Y are continuous random variables, prove from first principles that: (b) The random variable X has a gamma distribution with parameters-: 3 and A-2 . Y is a related variable with conditional mean and variance of =x)= Calculate the unconditional mean and standard deviation of Y. (c) Suppose that a random variable X has a standard normal distribution, and the conditional distribution of a Poisson random variable Y, given the value ol XOx, has...
PROBABILITY QUESTION
The Poisson distribution is a useful discrete distribution which can be used to model the number of occur rences of something per unit time. If X is Poisson distributed, i.e. X Poisson(λ), its probability mass function takes the following form: oisson distributed, i.e. X - Assume now we have n identically and independently drawn data points from Poisson(A) :D- {r1,...,Xn Question 3.1 [5 pts] Derive an expression for maximum likelihood estimate (MLE) of λ. Question 3.2 5pts Assume...
Two questions exist :
) if it has pdf. A railon variable X has the l'areio distril illi ribution with parameters m, a (m, α > 0 w 0 otherwise Show that if X has this Pareto distribution, then the random variable log(X/m) has the expo- nential distribution with parameter α Let X ~ Gamma(α, β), where α > 1 . Find E[1/X].
) if it has pdf. A railon variable X has the l'areio distril illi ribution with parameters...
6. The Poisson distribution is commonly used to model discrete data. The probability mass function of a Poisson random variable is P(X = x/A) =ー厂 , x = 0, 1, 2, , λ > 0. a. Find the MGF of a Poisson random variable. b. Use the MGF to find the mean of a Poisson random variable c. Use the MGF to find the second raw moment of a Poisson random variable. d. Use results d. Let Xi and X2...
3. Let Xi,... , Xio be a random sample of size 10 from a gamma distribution with α--3 and β 1/e. The prior distribution of θ is a gamma distribution with α-10 and B-2. Recall that the gamma density is given by elsewhere, (a) Find the posterior distribution of θ (b) If we observe 17, use the mean of the posterior distribution to give a point estimate of θ.
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