Suppose X, Y, and Z are random variables with the joint density function f(x, y, z) = Ce-(0.5x + 0.2y + 0.12) if x ≥ 0, y ≥ 0, z 20, and f(x, y, z) (a) Find the value of the constant C. (b) Find P(X ≤ 0.625, YS 1.125). (Round answer to five decimal places). (c) Find P(X ≤ 0.625, YS 1.125, Z≤ 1). (Round answer to six decimal places).
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- Pick two numbers X and Y independently at random (with uniform density) in the interval [0, 1]. Find the probability that given that 0.04323 ⠀ X< Y < 53 100 31 100 X.In a car service station, there are two service lines. The random variables X and Y are the proportions of time that line 1 and line 2 are in use, respectively. The joint probability density function for (X, Y) is given by S{(r² + y°), Osx s1;0sy s1 {6. f(x, y) = elsewhere. (a) If Z=X+ Y, the sum of the two proportions, find E(Z) ; (b) Find E(XY ); (c) Find Var(X); (d) Find Cov(X, Y );Consider a random variable Y with density S (1/2)(y + 1), -1 < y < 1, else. f(y) Calculate E(W) and V(W) for the random variable W = 4+Y – 2Y².
- Suppose that X and Y are random variables with the joint density function cx² + cy, 0 sx< 3,16. The random variable X is distributed by f(z)=e, z>0. What is the density, g(y), of where it is non-zero? A. 1 X²¹ 2y³/2 B. 2√9 C. 29-√7 D). -1/47 -1/ E. eC, D, and EThe probability density function of a random variable Y is given by 24y(10+2y- 0.3y²) S; (y)=< 0 < y<10 10000 0, otherwise Suppose a random sample of 40 observations is obtained from this distribution and these are denoted as Y,,Y,,…,Y40 • 40 a) Approximate the probability that the sample sum T =Ey, is between 200 and 250. i=1 b) Approximate the probability that the sample mean Y is less than 5.5.For some c, a continuous random variable X has density f(x) = { ' 0, (a.) What is c? (b.) Find ux and o. for 1≤x≤4 otherwise1) Let X1, X2, ..., Xn be a sample of n units from a population with a probability density function f (x I θ)=θxθ-1 , 0<x<1, θ>0 . According to this: Find the estimator of moments for the parameter θ.Please solve this question in probability and statistics5. Let X be a random variable whose density is given by the formula cx? if x E (0, 2) f (x) = otherwise. (a) Find c. (b) Let Y be the integer part of X, i.e., Y = 0 if 0 < X < 1 and Y = 1 if 1Suppose X and Y are independent random variables. X iş uniformly distributed on (0,) and Y is exponentially distributed with 1=2. Find the joint density function f(x, y) of X and Y.SEE MORE QUESTIONSRecommended textbooks for youAdvanced Engineering MathematicsAdvanced MathISBN:9780470458365Author:Erwin KreyszigPublisher:Wiley, John & Sons, IncorporatedNumerical Methods for EngineersAdvanced MathISBN:9780073397924Author:Steven C. Chapra Dr., Raymond P. CanalePublisher:McGraw-Hill EducationIntroductory Mathematics for Engineering Applicat…Advanced MathISBN:9781118141809Author:Nathan KlingbeilPublisher:WILEYMathematics For Machine TechnologyAdvanced MathISBN:9781337798310Author:Peterson, John.Publisher:Cengage Learning,Advanced Engineering MathematicsAdvanced MathISBN:9780470458365Author:Erwin KreyszigPublisher:Wiley, John & Sons, IncorporatedNumerical Methods for EngineersAdvanced MathISBN:9780073397924Author:Steven C. Chapra Dr., Raymond P. CanalePublisher:McGraw-Hill EducationIntroductory Mathematics for Engineering Applicat…Advanced MathISBN:9781118141809Author:Nathan KlingbeilPublisher:WILEYMathematics For Machine TechnologyAdvanced MathISBN:9781337798310Author:Peterson, John.Publisher:Cengage Learning,