# Questions tagged [random-variable]

A random variable or stochastic variable is a value that is subject to chance variation (i.e., randomness in a mathematical sense).

2,214 questions
Filter by
Sorted by
Tagged with
35 views

### Calculating expected value

Came across an interesting problem. You’re clearing out your garage for a garage sale, and you want to get rid of as much stuff as possible quickly. You found a dresser and decided to sell it to the ...
• 733
26 views

### probability that the players will exchange their initially drawn number

Consider the following two-player game. The players simultaneously draw one sample each from a continuous random variable X, which follows $Uniform\ [0, 100]$. After observing the value of her own ...
1 vote
21 views

### Correlation and Max and Min of Two Exponentials [duplicate]

Came across an interesting problem: Let X and Y be independent random variables such that both X and Y ∼ Exp(1). Define L = min(X,Y) and H = max(X,Y). What is ρ(L, H)? Why must the correlation should ...
• 733
27 views

### Minimum and Maximum of Two Exponentials [closed]

I'm confused by how to figure this out. So far, I've defined D to be a random variable tracking the amount of time that passes between the first and second events, so that D = H - L. While deriving ...
• 733
1 vote
56 views

• 111