Suppose X1,..., Xm are iid gamma random variables with parameters 1 and 0 Let X, = E X; ,let W, = log Xn ,and let Y, = 1/X Vn(X, - n0) converges in distribution to a normal distribution with mean o and variance 02 n3/2(Y, – (n0)-1) converges in distribution to a normal distribution with mean o and variance 1/0² Xn/n is not a consistent estimator for A
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- Find the mean of the random variable X with PDF S 3x² _if 0Q3/A/ Let X be a r.v with p.d.f f(x) = e-lkl - ocalculate the variance of g(X) =X^2+2, where X is the random variable with probability distribution : x=0,1,2,3; f(x) = 0.1, 0.2, 0.4,0.3 . a. 19.65 b. 26.28 c. 10.65 d. 11.65 e. 14.65Q5 Find the variance for the PDF px(x) = e-«/2, x > 0.let k be a random variable that takes with equal prob 1/(2n+1), values in integer the interral' [-n, n]. Find the PMF of the random variable y = log (x) where X = a¹" and a>o.Let's draw chance samples with a width of n1 = 10 from a population showing a normal distribution with a mean of 50 and a variance of 64, and a width of n2 = 9 from a population with a mean of 40 and a variance of 81 showing a normal distribution. If X'1 and X'2 show the sample averages, respectively, then what is the probability P |(X'1 - X'2)> 5| ? (X' = X bar)Let X1,…,Xn be i.i.d. Exp(λ) random variables, where λ is unknown.What is the variance and quadratic risk of the unbiased estimator θ^ = n*mini(Xi).Suppose X1, ..., Xn have been randomly sampled from a normal distribution with mean 0 and unknown variance sigma^2, and let U = c * i=1 -> n summation (X_ i)^2 , where c is a constant. Find the value of c that minimises the Mean Squared Error (MSE)Suppose a random variable X has range {−3, −1, 1, 2}. Its proba- bility distribution (probability mass function) is given by P (X = −3) = 0.25 P (X = −1) = 0.25 P (X = 1) = 0.45 P (X = 2) = 0.05 a) Find E(X). b) Find E(X^2). b) Find V (X). b) Find V (X^2).SEE MORE QUESTIONSRecommended textbooks for youCalculus For The Life SciencesCalculusISBN:9780321964038Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.Publisher:Pearson Addison Wesley,Calculus For The Life SciencesCalculusISBN:9780321964038Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.Publisher:Pearson Addison Wesley,