Lottery Probabilities

Soldato
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Evening all,

Does anyone bet on the Irish Lottery?

If you don't know, you can bet in the bookmakers on numbers that come out in the Irish Lottery and get different odds for the different amounts of numbers, so it's something like 1 number - 6/1, 2 numbers 57/1, 3 numbers 575/1 etc etc.

As a bit of an experiment I'm going to have a go with some numbers, now with the Irish lottery you can also bet on three draws not just the one. So I've been messing around with some probabilities tonight for betting on one draw and (if my calculations are correct) it's 8'145'060 to 1 to get all 6 balls and win the lottery. Ouch!

Again I think that the probability of you matching two balls in one draw is 12%, now here is my question.

If I did two numbers in draw 1 and as well the same two numbers in draw 2, how does this effect the probability?

On a normal lottery draw, buying two tickets would increase the odds by a fraction and you would still have no chance but here I'm betting on these two specific numbers coming out in two draws, so does that increase the chances or would the probability stay the same on each line?

:)
 
"If I did two numbers in draw 1 and as well the same two numbers in draw 2, how does this effect the probability?"

I don't know the lottery. However if the draws are unique and unrelated, then there would be no effect.
 
Been ages since I've done any probability, but wouldn't it be the same. In that there is the same chance of 2 numbers in one draw as there is for those same numbers in another draw, they don't effect each other...

Probably way off, but that's my 2c...
 
After reading just the two posts, that's what I'm thinking now as well. As the two numbers could come out in both draws and not effect each other
 
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