Joint Distribution: U,Y - Find P(0≤X≤2/3)

Click For Summary
SUMMARY

The discussion focuses on calculating the cumulative distribution function (CDF) and the probability P(0≤X≤2/3) for the random variable X, defined as the product of independent random variables U and Y. U is uniformly distributed on the interval (0,1), while Y is a discrete random variable with a distribution of 25% at 0 and 75% at 1. The challenge lies in correctly interpreting the distribution of Y and applying it to find the desired probability.

PREREQUISITES
  • Understanding of uniform distribution, specifically U ~ Uniform(0,1)
  • Knowledge of discrete random variables and their probability distributions
  • Familiarity with cumulative distribution functions (CDF)
  • Basic probability theory, including the multiplication of independent random variables
NEXT STEPS
  • Study the properties of uniform distributions and their applications in probability
  • Learn about discrete random variables and how to compute probabilities from their distributions
  • Explore cumulative distribution functions (CDF) and their significance in probability theory
  • Investigate the concept of independent random variables and their implications in probability calculations
USEFUL FOR

Students studying probability theory, statisticians, and anyone working with random variables and their distributions in mathematical contexts.

Eulogy
Messages
8
Reaction score
0

Homework Statement


Let U,Y be independent random variables. Here U is uniformly distributed on (0,1) Where as
Y~0.25\delta_{0} + 0.75\delta_{1}. Let X = UY. Find the Cdf and compute
P(0≤X≤2/3)

The Attempt at a Solution


Normally a question like this is fairly straightforward but I'm having trouble understanding how Y is distributed.
 
Last edited:
Physics news on Phys.org
I take that to mean Y is a discrete random variable that assumes the value 0 25% of the time and the value 1 the remaining 75% of the time.
 

Similar threads

Replies
7
Views
1K
  • · Replies 3 ·
Replies
3
Views
1K
Replies
9
Views
3K
  • · Replies 11 ·
Replies
11
Views
2K
Replies
6
Views
2K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 8 ·
Replies
8
Views
3K
  • · Replies 6 ·
Replies
6
Views
2K
Replies
2
Views
1K