Evaluate the integral given the probability density
Evaluate the integral given the probability density Problem 4. (1 point) A random variable x in...
The probability density function of a random variable X is given by f(x) = { kae? for > 0 for <0. 0 Find a) the value of k and b) the distribution function of X. (Hint: The integral lobe-du looks much simpler.)
Q1) (20 Mark) The probability density function of a random variable X is given by: f(x) Cx-2 x21 1) Find the value of C 2) Find the distribution function F(X) 3) Find P(X > 3) 4) Find the mean and the standard deviation of the distribution
Q1) (20 Mark) The probability density function of a random variable X is given by: f(x) Cx-2 x21 1) Find the value of C 2) Find the distribution function F(X) 3) Find P(X > 3) 4) Find the mean and the standard deviation of the distribution
3 Problem 3 Let X be a continuous random variable with probability density function given by 3 9 a) Find the total area beneath(for 0ss3. b) What is the probability that 0.5 1.5? (Don't use calculus. Use the area below the probability density function to compute the probability
is
a continuous random variable with the probability density
function
(x) = {
4x 0 <= x <= 1/2
{ -4x + 4 1/2 <= x <= 1
What is the equation for the corresponding cumulative density
function (cdf) C(x)?
[Hint: Recall that CDF is defined as C(x) = P(X<=x).]
We were unable to transcribe this imageWe were unable to transcribe this imageProblem 2. (1 point) X is a continuous random variable with the probability density function -4x+41/2sxs1 What is...
7. Let X a be random variable with probability density function given by -1 < x < 1 fx(x) otherwise (a) Find the mean u and variance o2 of X (b) Derive the moment generating function of X and state the values for which it is defined (c) For the value(s) at which the moment generating function found in part (b) is (are) not defined, what should the moment generating function be defined as? Justify your answer (d) Let X1,...
The random variable X has probability density function f (x) = k(−x²+5x−4) 1 ≤ x ≤ 4 or =0 1 Show that k = 2/9 Find 2 E(X), 3 the mode of X, 4 the cumulative distribution function F(X) for all x. 5 Evaluate P(X ≤ 2.5). 6 Deduce the value of the median and comment on the shape of the distribution.
2.5.6. The probability density function of a random variable X is given by f(x) 0, otherwise. (a) Find c (b) Find the distribution function Fx) (c) Compute P(l <X<3)
1. Suppose the random variable X has the following probability
density function:
Problem Set: 1. Suppose the random variable X has the following probability density function: p(x) = fcx 0sxs2 10 otherwise. ] Note this probability density function is also of the form of an unknown parameter c. (a) Determine the value of c that makes this a valid probability density function. (b) Determine the expected value of X, E[X]. (c) Determine the variance of X, V(X).
4. Let X be a continuous random variable with probability density 1 0< x<3 -x + k =6 f(x) elsewhere 0, Evaluate k. a. b. Find P(1 < X< 2). c. Find E(X) d. Find e. Find ox.
4. Let X be a continuous random variable with probability density 1 0