Statistics

8. A tetrahedron shaped die gives one of the numbers 1, 2, 3, 4 with equal probabilities. We roll
two of these dice and denote the two outcomes by X1 and X2. Let Y1 =(minpX1, X2) and
Y2 = |X1 - X2|.
(a) Find the joint probability mass function of X1 and X2.
(b) Find the joint probability mass function of Y1 and Y2.
(c) Compute E[Y1Y2]

  1. 👍 0
  2. 👎 0
  3. 👁 93
asked by Ethan

Respond to this Question

First Name

Your Response

Similar Questions

  1. math

    The faces of a green tetrahedron die are marked 10,20,30 and 40. All three die are thrown together and the scores added. Find the probability that the total is more than 30 but less than 35.

    asked by pius on December 16, 2016
  2. math -hw help

    Determine whether the following regular tetrahedrons have an edge length that is a whole number, a rational number or irrational number. The surface are of a tetrahedron is given by the equation: SA = √ 3s^2 Surface are of

    asked by AJ on February 5, 2015
  3. math

    I am studying making conjectures about L-shaped numbers. The assignment says to list the first 25 L-shaped numbers. I am not understanding how to solve the problem.

    asked by DeAndre on August 30, 2010
  4. 5th grade math

    I am studying making conjectures about L-shaped numbers. The assignment says to list the first 25 L-shaped numbers. I am not understanding how to solve the problem.

    asked by DeAndre on August 30, 2010
  5. maths

    Suppose that 10 dice are rolled. Each die is a regular 6 -sided die with numbers 1 through 6 labelled on the sides. How many different sums of all 10 numbers are possible?

    asked by Anonymous on February 10, 2013
  6. Help Math

    Jodi has a model of a tetrahedron (shown below) and would like to know how many different nets exist for the tetrahedron. How do you respond?

    asked by Enis on October 24, 2014
  7. Problems in three dimensions

    A regular tetrahedron has sides of length s. Show that the surface area, A, of the tetrahedron can be determined using the formula A= square root of 3s^2

    asked by Zara on February 23, 2017
  8. maths

    The sides of a tetrahedron are 4 equilateral triangles. If the base of each triangle is 8cm and its heights 6.9cm, please help me to calculate the surface are of the tetrahedron.

    asked by zeebuddy on August 21, 2014
  9. geometry

    A tetrahedron is a triangular pyramid in which each face is an equilateral triangle. Calculate the volume of a tetrahedron that has all its edges 6 cm in length. Hint: You will need to know some geometry and trigonometry.

    asked by Lucas on May 15, 2012
  10. math

    Two fair dice, one blue and one red, are tossed, and the up face on each die is recorded. Define the following events: E : { The sum of the numbers is even } F : { The numbers are equal } Find the following probabilities: (a) P(E)

    asked by urgentneedhelp on April 3, 2013

More Similar Questions