Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
← 55 members online
 0 viewing
The random variable X has the distribution Geo(0.2).
Two independent values of X are found.
Find the probability that the total of these two values is 3.
 2 years ago
 2 years ago
The random variable X has the distribution Geo(0.2). Two independent values of X are found. Find the probability that the total of these two values is 3.
 2 years ago
 2 years ago

This Question is Closed

adnanchowdhuryBest ResponseYou've already chosen the best response.0
no, then answer is: 0.064 (= 8/125)
 2 years ago

ZarkonBest ResponseYou've already chosen the best response.0
so the pmf is \[P(X=k)=(1.2)^{k1}.2\] if \(X_1\) and \(X_2\) are independent realizations of \(X\) then the joint pmf is given by \[P(X_1=m,X_2=n)=(1.2)^{m1}.2(1.2)^{n1}.2\] then the probability you are looking for is given by \[\sum_{v=1}^{2}P(X_1=v,X_2=3v)\]
 2 years ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.