Pascal Contest, 2009, question 21

karooomph · karooomph on Wed Feb 18, 2009 10:32 pm

Alice rolls a standard 6-sided die. Bob rolls a second standard 6-sided die. Alice wins if the values differ by 1. What is the probability that Alice wins Question

bfrsoccer · bfrsoccer on Thu Feb 19, 2009 7:09 pm

There are 12 different ways the values can differ by 1:
(Alice's roll,Bob's roll)
(1,2),(2,3)...(5,6), and (2,1), (3,2), ... (6,5)

There are 6*6 total possible results, so (12/(6*6))=1/3 is the answer, I think

bfrsoccer · bfrsoccer on Thu Feb 19, 2009 8:30 pm

oops, yeah, I meant 10.

karooomph · karooomph on Fri Feb 20, 2009 4:07 pm

what happened to my post? It's gone!
Shocked

funion987 · funion987 on Fri Feb 20, 2009 7:26 pm

I made a post but there was a glitch. It replaced my post with yours, and then it made it so that bfrsoccer said what you said.

karooomph · karooomph on Fri Feb 20, 2009 7:52 pm

wait, what?

nvm, I kind of get it, but it's confusing.

what would cause a glitch, is it just random, or was it cuz of something?

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Pascal Contest, 2009, question 21

Pascal Contest, 2009, question 21

Re: Pascal Contest, 2009, question 21

Re: Pascal Contest, 2009, question 21

Re: Pascal Contest, 2009, question 21

Re: Pascal Contest, 2009, question 21

Re: Pascal Contest, 2009, question 21