let X be a random variable with the following probability distrubution -1 0.4 0 0.05 1 0.30 2 0.25 find the expectation E(X) of X find the variances Var(X) of X

Q: Let X be a normally distributed random variable with mean 600 and variance 10,000. Find two values A…

A: Given Information Mean µ = 600 Variance V(x) = 10000 Standard deviation is given by

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Q: Calculate ​P(2.5≤x≤4​). b. Determine ​P(x<3​). c. Compute the​ mean, μ​, and the standard​…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Let z be a random variable with a standard normal distribution.  Find the indicated probabilities.…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

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Q: The probability mass function of a discrete random variable is: 7-x p(x) = a(=) G) for x = 1,2, .,…

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Q: Let x be a Poisson random variable with mean ? = 6. Find the probabilities for x using the Poisson…

A: Note: Since you have posted questions with multiple subparts we will solve the first three questions…

Q: Let X be a random variable with the following probability distribution.  Value x of X.…

A: Given data, x P(X=x) 0 0.30 10 0.05 20 0.20 30 0.05 40 0.35 50 0.05

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Q: Let X be a random variable with the following probability distribution: -3 6 9 f(x) | 1/6 1/2 1/3…

A: GivenLet X be a random variable x -3 6 9 f(x) 16 12 13

Q: Let X be a random variable that follows the Poisson distribution with a mean of Find: a. Р(X-0) b.…

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Q: (a) Find the expectation E (X) of X. E (x) = | %3D (b) Find the variance Var(X) of X. Var(X) = 0 %3D

A: Given: x p(x) 40 0.05 50 0.25 60 0.25 70 0.05 80 0.35 90 0.05 Total 1

Q: Let the probability function of the random variable X be defined as f(x)=c/x^4 for x>1, otherwise…

A: Solution: From the given information, the probability function of X is

Q: X P(X = x) 0 0.37 1 0.39 2 0.19 3 0.04 (a) Calculate the expected value, the variance and the…

A: Let the X  denote the number of vehicles reaching the crossroads per minute. The given probability…

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A: a and c.

Q: Given is the PDF of random variable X, where c = 1 and fx(x) = x^2 0<=x<=c. Determine the: 1.…

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Q: Let X be a discrete random variable with Poisson distribution, and with a standard deviation of 6.5.…

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Q: Let X be a random variable with the following probability distribution. Question table Value   of X…

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Q: Let X be a random variable with binomial probability distribution with number of trials n and…

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A: As per our guidelines I can solve only first 3 subparts. Post the remaining subparts again and…

Q: Let X and Y be two random variables with joint distribution given below fxY (x, y) = { 2 if 0< y< x…

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Q: Let X be a discrete random variable with expectation 1.5 and variance 2. Let Y = -2 X+9. Find the…

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Q: 3. The number of injections using a needle contaminated with the AIDS virus that is required to…

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Q: Use the z-table (attached to this test), calculator, or computer software to find the following:

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Q: (a) Find the expectation E (X) of X. E (x) = [] (b) Find the variance Var(X) of X. Var(x) = D %3D

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Q: Let X be a normal random variable with mean 3 and variance 4. a. Find the probability P(2c)=0.33.…

A: From the provided information, Mean (µ) = 3 Variance (σ2) = 4 Standard deviation (σ) = 2 X ~N (3, 2)

Q: The probability mass function of a discrete random variable is: 7-x p(x) = a=) G) for x = 1,2,., 14…

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Q: A random variable X has the following pdf: f(x) = 9xe-3";x > (a) Calculate the expected value of the…

A: Let X be a continuous random variable taking values in interval -∞,∞ with probability density…

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Q: x f(x) 20 0.10 25 0.20 30 0.25 35 0.15 40 0.10 a. What is the probability that the firm will obtain…

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Q: The probability distribution of random variable X is defined as follows:   X 0 1 2 3 4…

A: mean=expected value=E(X)=∑xP(X)

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Q: Let X be a random variable with the following probability distribution. Value X of X P(X=x) 30…

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Q: The discrete random variable X has the probability distribution given by: -4 -2 2 4 P(X= x) 0.3 3k k…

A: The probability distribution of random variable X is given.

Q: Let X be a normally distributed random variable with a mean of 210 and a variance of 484. Find the…

A: As per bartleby guideline expert have to answer first three subparts only dear student please upload…

Q: Let X be a random variable with the following probability |-6 3 9 distribution: 1 f(x) 4 1 1 2 4…

A: Given X is random variable with the probability distribution: x -6 3 9 f(x) 14 12 14 and…

Q: Let X be a random variable with the following probability distribution. Calculate the following…

A: X 4 5 6 7 8 9 P(X=x) 0.60 0.10 0.05 0.15 0.05 0.05

Q: Let x be a random variable with the following probability distribution 1 3 P(x) 0.3 k 0.1 0.2 Find…

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