Let x be a continuos random variable with f(x)=3/125x^2 for 0<\x<\5 and 0 in the complement....
1) Let X be a random variable that assume the values {0,1,2,3} with probability pi=1/14i^2. Determine in simplify fraction 2) Let X be a random variable that assume the values {-1,0,1} with probability p-1=1/4, p0=1/2, and p1=1/4 Determine P(X</-1|X</0)= Sea X una variable aleatoria que asume los valores {0,1,2,3} con probabilidad pe= -12. Determina en fracción 14 simplificada: - ש o=y 1 Sea X una variable aleatoria que asume los valores {-1,0,1} con probabilidad p-1 = 7: Po = ŻY...
el coeficiente de correlación rny nos indica a. La fortaleza de la relación b. La c. La presencia de outliers en el eje de Y d. La naturaleza de la relación que X causa camblos en Y e. Ninguna de las anteriores. cuál de las siguientes aseveracones cuadrática entre X, Y cercanía de los datos a la ecuación lineal entre X, Y se una desviación estándar s. Si una observación es tres veces el promedio (a saca de la muestra,...
6. Let ?1, ?2, ..., ?? be a random sample from a Normal population (?, ?2). Hint: For exponential families we have that E [∂ ln f (x | θ)] 2 = −E [∂2 ln f (x | θ)] θ ∂θ θ ∂θ2 c) Does s2 reach the C-R level? Justify n-1 6. Sea X1, X2, ..., Xn una muestra aleatoria de una población Normal(u, o?). a) Demostrar que s? ET-;(x1-1) Fes un estimador insesgado de oz. b) Encontrar la...
help a random variable X has density function f(x) = cx2 for 0<x<3 and f(x)= 0 others. a. Find constant value o b. Find probability P(1 < X < 2)
3. Let X be a continuous random variable with probability density function ax2 + bx f(0) = -{ { for 0 < x <1 otherwise 0 where a and b are constants. If E(X) = 0.75, find a, b, and Var(X). 4. Show that an exponential random variable is memoryless. That is, if X is exponential with parameter > 0, then P(X > s+t | X > s) = P(X > t) for s,t> 0 Hint: see example 5.1 in...
1. Let X be a random variable with pdf f(x )-, 0 < x < 2- a) Find the cdf F(x) b) Find the mean ofX.v c) Find the variance of X. d) Find F (1.75) e) Find PG < x < +' f) Find P(X> 1). g) Find the 40th percentile.*
the goal is to enter the beginning and end of the interval and return the root Extra: Can a function return a sentence with the calculated value and the iterations? function raiz=biseccion(xa,xb) clear all; close all; clc; %Método de bisección f=inline('cos(x.^2+1)./(x+1)','x');; % Resuma lo que se hacen en estas lÃneas ezplot(f); grid on; hold all; %Grafica la funcion f %Define el punto inicial y final del intervalo xk =[]; % epsilon = 10^(-4); % n=0; while (abs(xa-xb)>=epsilon || n~=350) %Si...
Let X be a random variable with pdf S 4x3 0 < x <1 Let Y 0 otherwise f(x) = {41 = = (x + 1)2 (a) Find the CDF of X (b) Find the pdf of Y.
(15 points) Let X be a continuous random variable with cumulative distribution function F(x) = 0, r <α Inr, a< x <b 1, b< (a) Find the values of a and b so that F(x) is the distribution function of a continuous random variable. (b) Find P(X > 2). (c) Find the probability density function f(x) for X. (d) Find E(X)
2. A random variable X has a cdf given by F(x) = 1 . x < 0 0 < x < 1 <3 x > 3 11, (f) What is P(X = 1)? (g) Find E(X), the expectation of X. (h) Find the 75th percentile of the distribution. Namely, find the value of 70.75 SO that P(X < 70.75) = F(710.75) = 0.75. (i) Find the conditional probability P(X > X|X > 3).