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1. Probability

   Suppose that X has a PDF of the form f(x) {1/x^2 if x>= 1 { 0 otherwise For any x>2, the conditional PDF of X, given the event X>2 is (Your answer should be an algebraic function of x)

   asked by Sam on March 7, 2017

2. Statistics

   hii. I have a question about pdf and cdf.. I couldn't solve it Please help me :/ 1) the pdf of the random var. X is given by f(x)= (3/8)(x+1)^2 if -1

   asked by Melike on January 10, 2014

3. Math

   For t∈R, define the following two functions: f1(t)=12π−−√exp(−max(1,t2)2) and f2(t)=12π−−√exp(−min(1,t2)2). In this problem, we explore whether these functions are valid probability density functions. Determine

   asked by Anonymous on August 2, 2019

4. Probability

   Suppose that we have three engines, which we turn on at time 0. Each engine will eventually fail, and we model each engine's lifetime as exponentially distributed with parameter λ. The lifetimes of different engines are

   asked by Anonymous on December 3, 2018

5. Math

   Problem 3. Probability Density Functions 2 points possible (graded, results hidden) For t∈R, define the following two functions: f1(t)=1/√2πexp(−max(1,t^2)^2) and f2(t)=1/√2πexp(−min(1,t^2)^2). In this problem, we

   asked by vvg on August 2, 2019

6. study skills

   what is the persistence triangle? This website discusses a persistance triangle and shows a clear diagram of it. http://www.habits-of-mind.net/pdf/persist.pdf Thank you for using the Jiskha Homework Help Forum. Here is a pdf file

   asked by anna on August 12, 2007

7. math

   let X1,X2,X3 be random sample with pdf f(x)=exp(-x),x>0,find the joint pdf of Y1=X1/X2, Y2=X3/(X1+X2) ,Y3=X1+X2, and find pdf of Y1. Are Y1,Y2,Y3 independent?

   asked by assma on February 8, 2015

8. math

   Let x1,x2,x3 be random sample with pdf f(x)=exp(-x),x>0 find the joint pdf of y1=x1/x2, y2=x3/(x1+x2),y3=x1+x2 find pdf of y1 Are y1,y2,y3 independent?

   asked by assma on February 8, 2015

9. math

   Let x1,x2,x3 be random sample with pdf f(x)=exp(-x),x>0 find the joint pdf of y1=x1/x2, y2=x3/(x1+x2),y3=x1+x2 find pdf of y1 Are y1,y2,y3 independent?

   asked by assma on February 8, 2015

10. math

    let X1,X2,X3 be random sample with pdf f(x)=exp(-x),x>0,find the joint pdf of Y1=X1/X2, Y2=X3/(X1+X2) ,Y3=X1+X2, and find pdf of Y1. Are Y1,Y2,Y3 independent?

    asked by assma on February 8, 2015

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