Search found 10 matches

by promethean
Mon Feb 28, 2011 2:34 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0866: "Compass and Straightedge"
Replies: 94
Views: 21886

Re: 0866: "Compass and Straightedge"

It's impossible to construct friends

I disagree:

Image
by promethean
Wed Dec 30, 2009 1:22 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0682: "Force"
Replies: 61
Views: 21057

Re: "Force" Discussion

Sure, it's funny, but the dirty little secret that no one wants to talk about is the fact that this, and not light-saber decapitation, is the leading cause of death among the Jedi.
by promethean
Wed Jul 01, 2009 7:54 pm UTC
Forum: Mathematics
Topic: Probability/Statistics question
Replies: 5
Views: 873

Re: Probability/Statistics question

Yeah, Bayes seems to break down when you treat the variables as independent, which makes sense given Bayes is meant to work with conditionals. Also my real world problem amounts to an assumption that there is some dependence, but theres so little overlap of the variables as to make the prior obtaine...
by promethean
Wed Jul 01, 2009 7:25 pm UTC
Forum: Mathematics
Topic: Trying to simplify my Prob/Statistics question
Replies: 5
Views: 948

Re: Trying to simplify my Prob/Statistics question

I suppose you're right. The problem is that if I assume total independence, p(x|y) = p(x) and p(y|x) = p(y). However, I have reason to believe there is a slight interconnection, but too small a sample size to chalk up an observed prior to anything but noise. As such I was hoping there was some stand...
by promethean
Wed Jul 01, 2009 4:22 pm UTC
Forum: Mathematics
Topic: Trying to simplify my Prob/Statistics question
Replies: 5
Views: 948

Re: Trying to simplify my Prob/Statistics question

So that the other info I listed there wouldn't confuse the core question I'm trying to answer.
by promethean
Wed Jul 01, 2009 3:44 pm UTC
Forum: Mathematics
Topic: Trying to simplify my Prob/Statistics question
Replies: 5
Views: 948

Trying to simplify my Prob/Statistics question

1. P(x) = 0.5
2. P(x|y) = 0.6
3. P(x|z) = 0.75

There's no observers correlation/connection between Y and Z.

4. What is P(x|y and z)?
by promethean
Wed Jul 01, 2009 3:24 pm UTC
Forum: Mathematics
Topic: Show us your articles! Or what's your Erdos number?
Replies: 187
Views: 272792

Re: Show us your articles! Or what's your Erdos number?

Do I have to have an Erdos number by virtue of being in the Math community? If so, I'm out of luck, but otherwise my Erdos number will depend on Erdos's Bacon number. I have a Bacon number of 3, by virtue of Me(3) -> Chip Bolcik(2) -> Alec Baldwin(1) -> Kevin Bacon(0). I saw in a posting about erdos...
by promethean
Wed Jul 01, 2009 2:47 pm UTC
Forum: Mathematics
Topic: Probability/Statistics question
Replies: 5
Views: 873

Re: Probability/Statistics question

Lets say they entire population (Pop) purchases a the rate of 50%, so P(Pop) = 0.5
by promethean
Wed Jul 01, 2009 2:16 pm UTC
Forum: Mathematics
Topic: Probability Question
Replies: 6
Views: 1020

Re: Probability Question

It also depends to a very large extent on your desire to date this person. (Which I am assuming is the case) I have found there to be a linearly inverse relationship between the two variables, such that as desire (D) -> unbearable, P(meeting) -> 0.
by promethean
Wed Jul 01, 2009 2:06 pm UTC
Forum: Mathematics
Topic: Probability/Statistics question
Replies: 5
Views: 873

Probability/Statistics question

I'm trying to figure out an appropriate way to factor in multible variables into the probability that a specific action will take place. I'll give the example of a customer buying an item: 1. I know that customers who live in a geographical area (A) purchase an item 75% of the time. 2. I know that c...

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