Select all of the following of marginal pmfs and pdfs that are TRUE. The only information you need to compute a marginal pmf is the original joint pmf. You cannot use a marginal pdf to find the expectation of a random variable. The sum or integral over an entire marginal pmf or pdf must be equal to 1. O You can generate the joint pdf of two random variables if you have both marginal pdfs. O The sum of all of the probabilities in a joint pmf with 2 random variables must add up to 2.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
icon
Concept explainers
Question
Select all of the following of marginal pmfs and pdfs that are TRUE.
O The only information you need to compute a marginal pmf is the original joint pmf.
O You cannot use a marginal pdf to find the expectation of a random variable.
O The sum or integral over an entire marginal pmf or pdf must be equal to 1.
O You can generate the joint pdf of two random variables if you have both marginal pdfs.
The sum of all of the probabilities in a joint pmf with 2 random variables must add up to 2.
Let f(x,y) be the joint pmf of rolling 2 identical, standard 6 sided dice.
What is Pr(X <= 2, Y>=4)?
Enter your answer with 4 decimal places.
Transcribed Image Text:Select all of the following of marginal pmfs and pdfs that are TRUE. O The only information you need to compute a marginal pmf is the original joint pmf. O You cannot use a marginal pdf to find the expectation of a random variable. O The sum or integral over an entire marginal pmf or pdf must be equal to 1. O You can generate the joint pdf of two random variables if you have both marginal pdfs. The sum of all of the probabilities in a joint pmf with 2 random variables must add up to 2. Let f(x,y) be the joint pmf of rolling 2 identical, standard 6 sided dice. What is Pr(X <= 2, Y>=4)? Enter your answer with 4 decimal places.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Continuous Probability Distribution
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman