Marginal density and expected value using joint density

Assignment Help Basic Statistics

Reference no: EM1318006

Random variables {X, Y} have a joint density

f(x,y)=y^(-1)e^(-y)e^(-x/y), 0

a) Find the marginal density of Y.

b) Find E(X) HINT: What is E (X|Y=y)?

Reference no: EM1318006

Questions Cloud

What is the probability : what is the probability that all will make a purchase and evaluate the probability that a light bulb will burn out in less than 1000 hours.

Probability using binomial to normal approximation : In the solution to this problem, what is n? p? q? Does it appear that both np and nq are larger than 5? Why is this an important consideration?

Marketing strategy implementation approaches : Given the various marketing strategy implementation approaches discussed in the text and your individual personality and preferences- Discuss your comfort level at implementing a strategy that is not within your personal comfort zone.

Find compound amount : Find compound amount.

Marginal density and expected value using joint density : a) Find the marginal density of Y. b) Find E(X) HINT: What is E (X|Y=y) ?

What is the best contractor-to-suburb match : The Greenberg public hearing meeting turned stormy. Citizens from four suburbs were gathered at city hall to try to get the city's federal funds for their own suburbs. The government recently awarded $750,000 to the city for road improvements. The..

Finding the probability from the given data : Finding the Probability from the given data - find the probability of getting no cracked candy canes.

Equal opportunity-affirmative action and managing diversity : What is the difference between equal opportunity, affirmative action, and managing diversity? Have these programs been successful?

Apply the echelon method to solve the equation : Apply the echelon method to solve the equation

User Account

All Pages