Suppose that X has a probability function f(x) = cx(x-1) 0 equal to or greater than x less than or equal to 1
other wise 0
find Var(X)? I know C value is 6
Suppose that X has a probability function f(x) = cx(x-1) 0 equal to or greater than...
7.2 Let X have density f(x) = cx for 0 < x < 2 and f(x) = 0 for other values of x. a. What is c? b. What is F(x)? c. What are E[X] and Var[x]? 7.3 Let X have density f(x) = cx(1 - x) for 0 sxs 1 and f(x) = 0 for other values of x. a. What is c? b. What is F(x)? c. What are E[X] and Var[x]?
Find k so that the following function is continuous on any interval:f(x)= kx 0 (less than or equal to) x (less than) 23x^22 (less than or equal to x)i know the answer is 12 but i don't know how to arrive at that. could you please walk me through the steps? thanks.
PHYS1047 a) Given a random variable x, with a continuous probability distribution function fx) 4 marks b) The life expectancy (in days) of a mechanical system has a probability density write down equations for the cumulative distribution C(x) and the survival distribution Px). State a relationship between them. function f(x)=1/x, for x21, and f(x)=0 for x <1. i Find the probability that the system lasts between 0 and I day.2 marks i) Find the probability that the system lasts between...
(1) Suppose that X is a continuous random variable with probability density function 0<x< 1 f() = (3-X)/4 i<< <3 10 otherwise (a) Compute the mean and variance of X. (b) Compute P(X <3/2). (c) Find the first quartile (25th percentile) for the distribution.
Suppose that the probability density function of X is f(x) {cx3 0 1< x < 5 otherwise where c is a constant. Find P(X < 2).
Suppose that the probability density function of X is f(x) {cx3 0 1< x < 5 otherwise where c is a constant. Find P(X < 2).
Suppose that the probability density function of X is f(x) {cx3 0 1< x < 5 otherwise where c is a constant. Find P(X < 2).
Suppose that the probability density function of X is f(x) {cx3 0 1< x < 5 otherwise where c is a constant. Find P(X < 2).
(1 point) The joint probability density function of X and Y is given by f(x, y) = cx ā 16 cā, - <x< 0 < b < co alt 0 < y < 0 Find c and the expected value of X: c = E(X) =
(6 points) The continuous random variable X has cumulative distribution function given by 0 for0 for 0 < z < 2 for 2 F(z) = ć z-4z2 Part(a) Find Var(X), correct to 2 decimal places. Part(b) Find E(X) correct to 2 decimal places. Part(c) Find P(X>) Give your answer as a decimal, correct to 2 decimal places. Part(d) Find E(X), correct to 2 decimal places. Part(e) Find the value of c correct to one decimal place given that E(Xc) 4E(X-c...