Question

Let X be a continuous RV with pdf f(x) = 2 ln x / x where...

Let X be a continuous RV with pdf f(x) = 2 ln x / x
where 1 ≤ x ≤ e. Compute the standard deviation of X.

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Let X be a continuous random variable rv distributed via the pdf f(x) =4e^(-4x) on the...
Let X be a continuous random variable rv distributed via the pdf f(x) =4e^(-4x) on the interval [0, infinity]. a) compute the cdf of X b) compute E(X) c) compute E(-2X) d) compute E(X^2)
The error involved in making a certain measurement is a continuous rv X with the following...
The error involved in making a certain measurement is a continuous rv X with the following pdf. F(x)=       0.09375(4-x^2) −2 ≤ x ≤ 2                         0                                                      otherwise (d) Compute P(X < −0.3 or X > 0.3). (Round your answer to four decimal places.)
2. Let X be a continuous random variable with pdf given by f(x) = k 6x...
2. Let X be a continuous random variable with pdf given by f(x) = k 6x − x 2 − 8 2 ≤ x ≤ 4; 0 otherwise. (a) Find k. (b) Find P(2.4 < X < 3.1). (c) Determine the cumulative distribution function. (d) Find the expected value of X. (e) Find the variance of X
19. Let X and Y be continuous random variables with joint pdf: f(x, y) = x−y...
19. Let X and Y be continuous random variables with joint pdf: f(x, y) = x−y for 0 ≤ y ≤ 1 and 1 ≤ x ≤ 2. If U = XY and V = X/Y , calculate the joint pdf of U and V , fUV (u, v).
3. Let X be a continuous random variable with PDF fX(x) = c / x^1/2, 0...
3. Let X be a continuous random variable with PDF fX(x) = c / x^1/2, 0 < x < 1. (a) Find the value of c such that fX(x) is indeed a PDF. Is this PDF bounded? (b) Determine and sketch the graph of the CDF of X. (c) Compute each of the following: (i) P(X > 0.5). (ii) P(X = 0). (ii) The median of X. (ii) The mean of X.
91. Let X be a RV with support set {0, 1, 2}, p(1) = 0.3, and...
91. Let X be a RV with support set {0, 1, 2}, p(1) = 0.3, and p(2) = 0.5. Calculate E[X]. Let X be a discrete RV. Define the expected value E[X] of X. Is E[X] constant or random? Why? 92. Suppose X is a RV with support {−1,0,1} where p(−1) = q and p(1) = p. What relationship must hold between p and q to ensure that E[X] = 0? 93. Let X be a discrete RV and a,...
5. Let X be a continuous random variable with PDF fX(x)= c(2+x), −2 < x <...
5. Let X be a continuous random variable with PDF fX(x)= c(2+x), −2 < x < −1, c(2−x), 1<x<2, 0, elsewhere (a) Find the value of c such that fX(x) is indeed a PDF. (b) Determine the CDF of X and sketch its graph. (c) Find P(X < 1.5). (d) Find m = π0.5 of X. Is it unique?
Let X and Y be continuous random variable with joint pdf f(x,y) = y/144 if 0...
Let X and Y be continuous random variable with joint pdf f(x,y) = y/144 if 0 < 4x < y < 12 and 0 otherwise Find Cov (X,Y).
If X is a continuous random variable with pdf f(x) on the interval [a,b] then show...
If X is a continuous random variable with pdf f(x) on the interval [a,b] then show that a<E(X)<b.
Suppose X and Y are continuous random variables with joint pdf f(x,y) = x + y,...
Suppose X and Y are continuous random variables with joint pdf f(x,y) = x + y, 0 < x< 1, 0 < y< 1. Let W = max(X,Y). Find EW.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT