calculate the expected value of X.S

Q: Determine the expected value of X. Determine the expected value of Y. Determine the expected value…

A: EX=∫X*g(X)dX=∫01X2XX+13dX=∫2X2X+13dX=∫2X3+2X23dX=2X4401+23X3301=12+29=0.722…

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

A: Given Information: No. of times a coin is tossed/No. of trials (n)=58 P(tail in a coin)=0.5

Q: 7 0.69 0.11 X 10 14 P(X) | 0.11 0.09 g² = What is the expected value of X?

A: Consider the table:

Q: A fair die is tossed. Let X denote twice the number appearing, and let Y denote 1 or 3 according as…

A: When a fair die is thrown, then the total possible outcomes in the Sample space = S={1,2,3,4,5,6} ∵…

Q: If 'X' is a continuous random variable, then the expected value is given by O a. SXP(X) O b. No…

A: The symbol used to denote the expected value of a particular random variable is E(X). It is defined…

Q: (1 point) Find the expected value for the random variable: X 3 P(X) 0.28 0.14 0.11 0.47 E(X) = %3D

A:

Q: The rate of return of an investment, X, follows a normal distribution with mean 0.07 and standard…

A: We have given that rate of return X is following normal distribution and then 10000 invested in an…

Q: The random varable X represent the number of computers arriving at a computer repair store on any…

A: The expected value of X can be calculated as E(X) = ∑x. P(x)

Q: Let X be a random variable with a mean equal to 100 and a standard deviation equal to 15. Let…

A:

Q: 2Y 0 Show that has a x² distribution with 2 degrees of freedom.

A: Mean =θ ,

Q: Calculate the expected value E(X) of the given random variable X. X is the lower number when two…

A: Two dices are rolled.

Q: P(x) 0.1 0.3 0.2 0.3 0.1 Find (?(?≥1) Find the expected value (mean) of ?.

A:

Q: A random number X has the following probability distribution: x P(X=x) 0 .2 1 .2 5 .1 10 .3 y .2…

A: Given Data: Expected value: E(X)=10 The expected value of the given distribution is,…

Q: Calculate the expected value E(X) for the given random variable X. Select 13 cards without…

A: From the provided information, Total cards in standard deck = 52 13 cards selected without…

Q: b b at 1 Mx (t) =E(e*)= [e* f(x) dx = [e* dx =- X b - b- a (b-a)i a a a to

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Q: The PDF of the random variable XX is given below (1st figure). Suppose you have a random variable Y,…

A:

Q: x f(x) 20 0.10 25 0.20 30 0.25 35 0.15 40 0.10 45 0.10 50 0.10 compute expected value, variance,…

A: We want to find mean, variance and standard deviation

Q: X∼U(a,b) , Using the moment generating function. Calculate the expected value and variance of the…

A:

Q: A random variable X has only two values a and b with P(X = a) = p , P(X = b) = q (p + q = 1). Find…

A:

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

A: Let us assume X= number of tails. The probability of getting a tail from an unbiased coin is 0.5.…

Q: A random variable X has the following distribution: X P(X=x) -1 0 1 .3 .5 2 Let Y=X². Find the…

A: The given probability distribution of variable X is as follows:x-101P(X=x)0.30.50.2The random…

Q: Compute the expected value for X.

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

Q: 4.11 The density function of coded measurements of the pitch diameter of threads of a fitting is…

A: The mean of density function is defined as given by      E(x)=∫abx*f(x) dx Where, f(x) is the given…

Q: The table below shows the probability distribution function of the number of accidents (X) occur in…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: Let Y be an exponential random variable with (unknown) mean 0.

A: Mean of Y is θ

Q: Which of the following is a true statement? A. The expected value is the most frequently occurring…

A: In this case, we need to identify the true statement.

Q: If X is exponentially distributed, prove that the probability that X exceed its expected value is…

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Q: Assume that a random variable Y has a mean of zero and standard deviation of one. Calculate the…

A:

Q: The random variable Z has the probability distribution shown below If  E(Z) =4 2/3find the values…

A: Given Information: The probability distribution of the random variable Z is given as: z 2 3 5 7…

Q: x p(x) -1 1/7 0 3/7 2 2/7 4 1/7 What is the expected value or mean of x? What is the variance of x?

A: We have given that,  X be the random variable having probability mass function is,     X  :    -1…

Q: Profits to a company follow a lognormal distribution with expected value 50 and variance 200.…

A: Given that profits to a company follow a lognormal distribution with expected value 50 and variance…

Q: Let the random variable x have a normal distribution with a mean value of 70 and a variance of 25.…

A: Given data: Mean = 70 Variance = 25 To find: P (x < 80 ) = ?