Find the expected value for the random variable: X 1 2 4 P(X) 0.21 0.25 0.11 0.43 E(X) =

Q: Consider the discrete random variable X given in the table below. Calculate the mean, variance, and…

A: X P(X) 6 0.1 0.6 36 3.6 8 0.13 1.04 64 8.32 10 0.14 1.4 100 14 12 0.08 0.96 144 11.52…

Q: For the random variable X defined by the probability function below, answer the following questions.…

A: Given: x 2 3 4 5 6 7 f(x) 0.25 0.15 0.10 0.15 0.10 0.25

Q: Q1. A box is to be constructed so that its height is five inches and its base is Y inches by Y…

A: I solved exactly first question because of bartleby policy if you want more please uplode…

Q: A random variable X has the following probability distribution: X 2 4 6 P(X) 0.12 0.10 2k 0.28 Find…

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Q: The probability distribution of the random variable X is given below. 0 1 2 3 X=x P(X=x)…

A: See the solution

Q: Consider the discrete random variable X given in the table below. Calculate the mean, variance, and…

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Q: from the probability distribution, find the mean and standard deviation for the random variable,…

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Q: The condenser motor in an air conditioner costs $300 to replace, but a home air-conditioning service…

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Q: Determine the expected value of g(x,y) = (X^3)+(Y^2)

A: Solution

Q: Find the expected value of the random variable. 3 4 P(x) 0.10 0.05 0.30 0.55 What is the expected…

A: We have given that,  X is random variable  having p.m.f  X  :    2           3            4…

Q: Random samples of size 100 are taken from an infinite population whose population proportion is 0.2.…

A: Determine the mean value of the sample proportion p̂. The mean value of the sample proportion p̂ is…

Q: Find the expected value E(X) of a random variable X having the following probability distribution.…

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Q: X is a uniformly distributed random variable with A = 10 and B = 20. a) What is the 75th percentile…

A: X is a uniformly distributed random variable with A = 10 and B = 20.a) What is the 75th percentile…

Q: The number of ships to arrive at a harbour on any given day is a random variable represented by X.…

A: x P(x) x*P(x) 5 0.15 0.75 6 0.125 0.75 8 0.268 2.144 12 0.305 3.66 13 0.132 1.716 15…

Q: Find a value of the standard normal random variable z, call a. P(zszo)=0.0283 b. P(-Zo szsz0)= 0.90…

A: Givena)P(z≤z0)=0.0283

Q: p.d.f. h(x) of the random variable x is defined by h(x) =3/(4(1-x²)),-1<x< 1,Calculate the expected…

A: Given pdf of random variable is defined by h(x). We have to find the expected value of X that is…

Q: The random variable æ has the following probability distribution: 1 2 3 2 2 1 2 P(x) 10 10 10 10|10…

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Q: Find the expected value E(X) of a random variable X having the following probability distribution.…

A: The probability distribution is shown in the table given in the problem. The expected value of the…

Q: Consider the random variable X with probability function given in the table below. f(x) 0.2591…

A: Solution: Note: Hello! As you have posted more than 3 sub parts, we are answering the first 3…

Q: The random variable X is B(n,0.3) and E(X) =2.4. find n and the standard deviation

A: A random variable uses the binomial distribution, if it follows the conditions given below.  There…

Q: Let X be a binomial random variable with mean u = 2.2 and variance o = 1.76, find a) Write the…

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Q: let X be a random variable and X~B(9,0.55) find the mean (expected value) of the random variable X

A: Given : X ~ B(9,0.55) If X ~ B(n,p) then,  Mean : E(X) = n*p Here, n = 9 p = 0.55

Q: Let x be a random variable with the following probability distribution -1 1 2 P(x) 0.2 k 0.3 0.25…

A: To find: The expected value and standard deviation of X.

Q: Given the distribution function x < 0 1 0<x < 2 F (x) = 2 < x < 5 1 r25 of the random variable X.…

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Q: Calculate the standard deviation o of X for the probability distribution. (Round your answer to two…

A: From the given information, X -5 -1 0 2 5 10   P(X=x) 0.1 0.2 0.3 0.1 0.3 0   XP(X=x) -0.5…

Q: Consider the discrete random variable X given in the table below. Calculate the mean, variance, and…

A:

Q: The number of ships to arrive at a harbour on any given day is a random variable represented by X.…

A: The expected value can be calculated as: Therefore, the expected value is 9.320

Q: Let X be a binomial random variable with mean u = 3.6 and variance o? = 2.52, find a) Write the…

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Q: The expected value, E(X), of a uniform random variable X defined over the interval a<x< b, is а. а…

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Q: The random variable X is described by the following probabilities. i 1 4 P(X = i) = Pi 0.5 0.4 0.05…

A: The Expected Value is given as: Expected Value = ∑Xpi=0×0.5+1×0.4+3×0.05+4×0.05=0.75

Q: Find the expected value for the random variable:     X     1       2       4       6   P(X)   0.16…

A: Given data,   E(X)=?

Q: The random variable X has the following probability distribution. -1 0 P(X=x) 0.20 0.50 0.30…

A: Consider the probability distribution:

Q: The random variable X is related to e2. Find P(X>0.4).

A: It is given that the, The random variable X is related to e2 i.e. X ~ exp(2). We have to find P(X…

Q: Decide whether a discrete or continuous random variable is the best model for each of the following…

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Q: spectively. Find the mean and standard deviation of the given random variable y = x + 3 ) = 5x w =…

A: Given : Mean=9 Sd= 4

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: A random variable, z, has p.d.f. f (z) = e¯², 0 =< Z < 1. Calculate the expected value of z. a. 1 b.…

A: A random variable, z, has p.d.f. f (z) = e², 0 &lt; Z &lt; 1.

Q: Find the expected value E(X) of a random variable X having the following probability distribution.…

A: Give probability distribution

Q: Consider the discrete random variable X given in the table below. Calculate the mean, variance, and…

A: The mean of the random variable X is given by:…

Q: Let the random variable X = the number of motor vehicle accidents per student in one year. Find the…

A: Given data is  x 0 1 2 3 4 5 probability 0.15 0.29 0.25 0.18 0.10 0.03

Q: A random variable X has the following distribution function: x <0 0.1x 0<r<3

A: Given information, FXx=0   x&lt;00.1x    0≤x&lt;30.4x-0.6     3≤x&lt;41                x≥4

Q: Find the expected value E(X) of a random variable X having the following probability distribution.…

A: Given probability distribution is:

Q: What is the expected value of y if f(y) = 6y + 0.5 and 0≤y≤0.05? (

A: Given , fy=6y+0.5 ; 0≤y≤0.05

Q: Consider the discrete random variable x given in the table below. Calculate the mean, variance, and…

A: SOLUTION Conditions for the discrete probability distribution The sum of all probability is equal to…

Q: What is the Expected Value of X?, E(X2)?

A: Given that, When a motorist stops at a red light at a certain intersection, the waiting time for the…

Q: c) Let X be the random variable with the cumulative probability distribution: x < 0 F(x) = {₁ - e-²x…

A:

Q: The discrete random variable X has the probability distribution given by: -1 2. 3 P(X=x) 0.2 0.4r…

A: As per our guidelines, we are allowed to answer first three sub-parts only. Thanks   For the…

Q: let X be a random variable and X-B(9,0.49) find the mean (expected value) of the random variable X

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Q: The random variable Y is defined as Y = 2X +0.2 Find the expected value and the variance of the…

A: In question, Given that Y is a random variable and Y = 2X + 0.2 and X has a pdf f(x). Then we'll…