Question

Find the expected value E(X), the variance Var(X) and the standard deviation σ(X) for the density...

Find the expected value E(X), the variance Var(X) and the standard deviation σ(X) for the density function. (Round your answers to four decimal places.) f(x) = ex on [0, ln 2] E(X) = Var(X) = σ(X) =

Homework Answers

Answer #1

TOPIC:Expectation,variance and sd.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Find the expected value E(X), the variance Var(X) and the standard deviation σ(X) for the density...
Find the expected value E(X), the variance Var(X) and the standard deviation σ(X) for the density function. (Round your answers to four decimal places.) f(x) = ex on [0, ln 2] E(X) =    Var(X) = σ(X) =
Find the expected value E(X), the variance Var(X) and the standard deviation σ(X) for the density...
Find the expected value E(X), the variance Var(X) and the standard deviation σ(X) for the density function. (Round your answers to four decimal places.) f(x) = e^x on [0, ln 2]?
Mean, Variance and Standard Deviation of a Continuous Random Variable 37. Consider the density function (?)=3?...
Mean, Variance and Standard Deviation of a Continuous Random Variable 37. Consider the density function (?)=3? 2 on the interval [0,1]. Find the expected value E(X), the variance Var(X) and the standard deviation σ(X) for the density function and round your answers to four decimal places [Clearly state the method you used and how you calculated your result if you used the calculator] 38.Find the median of the random variable with the probability density function given in question 37 round...
Find E(X),Var(X),σ(X) if a random variable x is given by its density function f(x), such that...
Find E(X),Var(X),σ(X) if a random variable x is given by its density function f(x), such that f(x)=0, if x≤0 f(x)=2x5, if 0<x≤1 f(x)=0, if x>1
From the probability distribution given below, find the mean, variance, standard deviation and expected value of...
From the probability distribution given below, find the mean, variance, standard deviation and expected value of the random variable, X. Round your values for variance and standard deviation to two decimal places (if necessary). X 27 32 54 63 78 P(X) 5/18 1/4 1/12 2/9 1/6
What are the expected value, variance and standard deviation of the following probability distribution? Number of...
What are the expected value, variance and standard deviation of the following probability distribution? Number of Offices Proportion of Students p(X) 0 0.12 1 0.18 2 0.26 3 0.24 4 0.13 5 0.07 E(X) Var(X)
The density function of random variable X is given by f(x) = 1/4 , if 0...
The density function of random variable X is given by f(x) = 1/4 , if 0 Find P(x>2) Find the expected value of X, E(X). Find variance of X, Var(X). Let F(X) be cumulative distribution function of X. Find F(3/2)
The random variable X has probability density function: f(x) = ke^(−x) 0 ≤ x ≤ ln...
The random variable X has probability density function: f(x) = ke^(−x) 0 ≤ x ≤ ln 2 0 otherwise Part a: Determine the value of k. Part b: Find F(x), the cumulative distribution function of X. Part c: Find E[X]. Part d: Find the variance and standard deviation of X. All work must be shown for this question. R-Studio should not be used.
Consider the following exponential probability density function. f(x) = (1)/(5)e−x/5    for x ≥ 0 (a) Write...
Consider the following exponential probability density function. f(x) = (1)/(5)e−x/5    for x ≥ 0 (a) Write the formula for P(x ≤ x0). (b) Find P(x ≤ 3). (Round your answer to four decimal places.) (c) Find P(x ≥ 5). (Round your answer to four decimal places.) (d) Find P(x ≤ 7). (Round your answer to four decimal places.) (e) Find P(3 ≤ x ≤ 7). (Round your answer to four decimal places.)
a. Assume that x has a normal distribution with the specified mean and standard deviation. Find...
a. Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.) μ = 15.5; σ = 4.5 P(10 ≤ x ≤ 26) = b. Now, assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.) μ = 14.2; σ = 2.9   P(8 ≤ x ≤ 12) = c. Now, assume...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT