X~U(a,b) , Calculate the expected value and variance of the random variable X.

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A: We have given that X is a continuous random variable with the uniform distribution on [0,1].

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Q: Let fx (2) be the probability density function of the random variable X. 3 f(2) =10, 2 28 -1<z<3;…

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Q: Let (X,Y) be a bivariate normal random variable. Assume that the covariance between X and Y is 0.…

A: It is an important part of statistics . It is widely used .

Q: iscrete support of the random variable X

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Q: The Poisson distribution is very useful in analyzing phenomena which occur randomly in space or…

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Q: Calculate the mean and variance of the weight of the package B. Determine the probability that the…

A: It is given that X follows Uniform(a = 45, b = 70).

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Q: Find the expected value of x

A: Expectation is a concept in probability. It is similar to mean.

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Q: The properties of a joint distribution function for two random variables X and Y are given as (1)…

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Q: A coin is flipped three times. The random variable X is defined as the number of heads minus the…

A: solutionwhen a coin flipped three times possible outcomes are sample spaceS='3' Tail 'o' head, 2…

Q: Two 6-sided dice are rolled and the two resulting values X and Y are multiplied together to form the…

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Q: The probability distribution of the discrete random variable X is   Find the mean and variance of…

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Q: Provide one example of discrete random variable and one example of continuous random variable. a.…

A: A discrete variable is a variable that takes finite and countable values. In other words, the values…

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Q: . Find the probability that 5 patients present in the first hour b. What is the probability that the…

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Q: What is the distribution of the random vector (X1 +2X2, X - X2)?

A: Given that X follows tri-variate Normal distribution.

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Q: How do u find expected value

A: How do u find expected value

Q: Calculate the expected value E(X) of the given random variable X. X is the number of tails that come…

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Q: The probability of having a red color ball is 15%. The boy selected four submitted balls at random,…

A: Any ball selected may be red or any other So the ball selected will follow Bernoullian trials. Now…

Q: Compute the expected value for X.

A: here  given  joint distribution of X and Y  here E(X) = ∑X.p(X)

Q: What is the expected value of X?

A: x         0 1 2 total  y 0 0.13 0.08 0.22 0.43   1 0.16 0.14 0.03 0.33   2 0.07 0.04…

Q: A discrete random variable has probability distribution: x= 1, 2,3,4, 5 and P(x) =0.12,0.15, 0.23,…

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A: According to the provided information,  μ = 38 and σ = 12.

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Q: Continuous random variables that appear to have equally likely outcomes over their range of possible…

A: Given:  A continuous random variable taht is equally likely outcome over thier ranges of possible…

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Q: X is a random variable such that X ~ B(n, p) where mean is 2 and 3 variance is 2. Find the…

A: Given, Mean =2 Variance =3/2 X ~ B(n,p)

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Q: Let X1,..., Xn be a random sample from a uniform distribution on [0, 1], where 0 < 0 < 1. 1. Find…

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Q: A random variable Z is normally distributed with mean and variance are 0 and 1 respectively.…

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Q: probability of relapse into alcoholism can be modeled with a discrete random variable with mean ? =…

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Q: The number of telephone calls coming into Grace Floral Shop to place orders averages 3 per minute.…

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Q: Find the expected value of X

A:

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.