Help with simple (?) math problem on probability - The Orange Mane

Broncobiv · 07-31-2009, 07:09 PM

I'm totally going blank here...help! I'm playing this dice game on Facebook called Farkle, and I need help with some probabilities. I won't go into the rules because they're not important, so this is the situation I'm confused about:

I have 3 dice. I want either a 1 or a 5 to come up on any of the dice. Obviously the odds are 1:3 for each individual die, but what are the odds that a 1 or 5 come up on any 3 of the dice?

And one last part, what are the odds that those three dice all come up the same number, whether it's three 1's, three 5's, or even three 2's, 3's, 4's, or 6's? So what are the total odds that at least one 1 or one 5 come up, or that the three dice come up trips?

Broncobiv · 08-03-2009, 05:30 PM

There's gotta be someone who knows some math on this forum! Anyone?

07-31-2009, 07:09 PM	#1
Broncobiv Tee many martoonis Join Date: Jul 2006 Location: Tucson, AZ Posts: 2,265	Help with simple (?) math problem on probability I'm totally going blank here...help! I'm playing this dice game on Facebook called Farkle, and I need help with some probabilities. I won't go into the rules because they're not important, so this is the situation I'm confused about: I have 3 dice. I want either a 1 or a 5 to come up on any of the dice. Obviously the odds are 1:3 for each individual die, but what are the odds that a 1 or 5 come up on any 3 of the dice? And one last part, what are the odds that those three dice all come up the same number, whether it's three 1's, three 5's, or even three 2's, 3's, 4's, or 6's? So what are the total odds that at least one 1 or one 5 come up, or that the three dice come up trips?

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08-03-2009, 05:30 PM	#2
Broncobiv Tee many martoonis Join Date: Jul 2006 Location: Tucson, AZ Posts: 2,265	There's gotta be someone who knows some math on this forum! Anyone?