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Let X and Y be independent geometric distributions. U = min(X,Y), V = X - Y
(a) Show that U and V are independent
(b) Find the distribution of Z = X / (X+Y)
(c) Find the joint pdf of X and (X +Y)
Suppose the distribution of Y, conditional on X = x, is N(x, x^2), and marginal of X is U[0,1].
(a) Find E[Y], Var[Y], Cov(X, Y)
(b) Are the random variables U = Y / X and V = X independent?
Find the moment generating function of their sum and identify the corresponding distribution, its mean and its variance.
For each variable, identify the kind of graph that should be used to display the distribution of scores (histogram, polygon, or bar graph).
If 900 users visited the site, would the probability that more than 250 of them click on an ad be higher or lower than the answer found in part
given the following estimates of various components of genetic variationva 90 vd 50 vi 35 ve 125what is
Write a Results section in current APA style describing the outcome - difference in satisfaction ratings in an assisted living facility between residents who had a pet with them vs. those who did not have a pet.
Rrequired service under the warranty. consider a new dealer. what is the probablity that the first claim under this warranty is the tenth car sold?
a small firm has 24 accounts payable of which 14 of the accounts have errors in them. if 7 accounts are chosen at
let x and y be independent random variables with x exp2 and yexp3 where the pdf of an exponential random variable is
a survey of 175 gun owners was taken and 44.3 of them said they have a gun for protection for self andor family. is
Standard deviation of 5 hours. What percentage of the bulbs have lifetimes that lie within one standard deviation of the mean on either side?
The engineers hoped to base their decision on the reactions of 50 drivers, but time and budget constraints may force them to cut back to 20. How would this affect the power of the test? Explain.
the time to failure of an electrical component in constant failure rate mode follows an exponential distribution with
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