Tagged Questions
1
vote
1answer
81 views
Proving that a function is monotone
Here is the setting: We have a middleman that buys a product from the producers, and sells the product to the customers. The middleman charges a price $R$ to the customers, and pays a price $p(R)$ to ...
3
votes
0answers
55 views
How many dollars does it take to be rich?
This is probably a dumb economics question since I don't know anything about that subject beyond a few buzzwords (but I do know a little math). I'm trying to figure out how many dollars it takes to ...
0
votes
1answer
77 views
Interpreting an integral/ probability
Think of two iid random variables $x$ and $y$ with density $f$ and CDF $F$ and a constant $c$. What could the qualitative meaning of the following expression be?
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0
votes
1answer
58 views
what can we say about $G(.)$?
Given $c \in R$, a deterministic probability density $f(x)$ and its cumulative distribution $F(c)$, what can be said about $G(c)$ where:
$G(c)=\int f(x)F\left( x+c\right) dx $
The question ...
0
votes
1answer
58 views
how can I compute a posterior distribution using Bayes?
This may be a silly question, but I cannot figure out a convincing (to myself) answer to it. Suppose that you want to buy a new car. Let $v$ be the value you attach to the car. Before visiting the ...
0
votes
0answers
113 views
Understanding a Proof in Probability Theory
My question is pretty simple: I have two equations which are supposedly true (from a published paper) but I have no idea how to arrive at the solution myself. So it would be great if someone could a) ...
