## Search found 22247 matches

Wed Feb 28, 2007 9:23 pm UTC
Forum: Forum Games
Topic: 3 letters in a word
Replies: 1795
Views: 278471
Belial wrote:A search through the Merriam Webster dictionary would tend to agree

Okay, then if people are still interested in continuing, I give you

xyz
Wed Feb 28, 2007 7:31 pm UTC
Forum: Logic Puzzles
Topic: Seemingly Easy Probability Problem
Replies: 8
Views: 3770
SpitValve wrote:By "with replacement" you mean there's always still n objects?

That's what I'm assuming. So you end up with k-length words written in an alphabet of n letters, basically.
Wed Feb 28, 2007 7:02 pm UTC
Forum: Forum Games
Topic: 3 letters in a word
Replies: 1795
Views: 278471
Anyone else suspect there isn't actually a remotely common English word with this combination in it?
Wed Feb 28, 2007 6:37 pm UTC
Forum: Logic Puzzles
Topic: Another doughnut question:
Replies: 11
Views: 7959

### Re: Another doughnut question:

Certainly if it's not a nice torus, but rather "bumpy" or something, you could get it into arbitrarily many pieces, so let's assume the object's intersection with our three dimensions is a nice normal torus. Any less than 8 and you're just not trying at all. I think possibly existing in hi...
Wed Feb 28, 2007 6:24 pm UTC
Forum: Logic Puzzles
Topic: Two-child families revisited
Replies: 24
Views: 7090

### Re: Two-child families revisited

What we want is the probability that the family has one girl and one boy, given that at least one child is a girl. So we want P(one girl and one boy|at least one girl) = P(one girl and one boy)/P(at least one girl) (This is because the probability that there is one of each AND at least one girl is j...
Wed Feb 28, 2007 6:12 pm UTC
Forum: Logic Puzzles
Topic: Seemingly Easy Probability Problem
Replies: 8
Views: 3770

### Re: Seemingly Easy Probability Problem

The probability that a particular item still hasn't been picked after k trials is ((n-1)/n)^k, so my first guess would be that it's just n times this number to get the probability that any one of the objects still hasn't been picked after k trials, and thus 1 minus that number to get the chance that...
Wed Feb 28, 2007 6:05 pm UTC