a) Let X₁, X2, X3,..., Xn be a random sample of size n from the normal distribution N(μ, σ²). i) State, with parameter(s), the probability distribution of 1) 2) X3-X₂ o√₂ 1 (X4-X₁)² 2 0²
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- 2) Consider a standard normal random variable X and Y-Exp(ß = 1). If W = 2Y and Z = VIX, then a) State with parameter(s) the probability distribution of Z. b) Find the mean and variance of Z. c) d) Find the value of T if P(Z > T): 1000 Compute the probability that Z is at most 6.97.Q4 and Q5 pleaaaaaseSuppose X is a random variable of uniform distribution between 1 and 7. Find E(X)
- Let the following simple random sample X1, X2, · · , X11 following: 1. Binomial pmf. (11, ¾); 2. Uniform pmf; 3. Uniform pdf (0, a); 4. Exponential pdf with (µ). Find the corresponding pmf/pdf of Y1 , Y4, Y7 and F(Y;) where Yi < Y½ < .. < Y6 < ..< Yı1.Suppose the random variable X follows a normal distribution with mean 80 and variance 100. Then the probability is 0.6826 that X is in the symmetric interval about the mean between two numbers are A) -2 to 2 B) -3 to 3 C) -1 to 1 D) noneLet X; (i = 1, 2,..., n) be i.i.d. exponential random variables with E{X;} = 1/A. Let Y = mn{X1, X2,..., Xn}. What is the distribution of Y? (Compute P{Y > y}.) What is the distribution of Z = max{X1, X2, ..., Xn}? (Compute P{Z < z}.)
- Consider the random sample X1, ... , X4 from a Uniform distribution (0,1). Calculate the expectation of the random variable: Y1 = min( X1, ... , X4)find oc x is a a normal mean U=3 805-0-5 random distribution P (ocLet X1, . . . , Xn be independent random variables, such that Xi ∼ Poiss(λi), for i = 1, . . . , n. Find the distribution of Y = X1 + · · · + Xn.Q8 and Q9 pleaseTrue False? a)A sided dice with the probability of 1 and 6 coming p and the other numbers (2, 3, 4, 5) is 2p is rolled n times. x̄, is the average of the numbers in n shots. According to this information, p = 2 / 5x̄. b)If X1, ..., Xn, N is a random sample drawn from the distribution (μ, ϭ²), the sample mean x̄ and sample variance S² are always independent.M1SEE MORE QUESTIONS