LOTTERY BALLS
what is your probability of winning the lottery if the balls are numbered 1-20 and you have to get 10 right?
There are (20 choose 10) total draws that can happen in the lottery drawing.
So your chances of winning are:
1 / (20 choose 10) = 1 / 184756
At least, those are the odds for each ticket you buy (buying another ticket – as long as it’s different from the previous ticket – will increase your chances of course).
It is approximately:
0.000541254 %
IT IS NOT 50%. That is a nonsense answer. Please also note that others giving answers like (1/20)^10 or 1/20! do not understand how a lottery works. In lotteries, the order of the numbers is irrelevant and numbers are not repeated.
Lotto falling balls! Lottery with balls.
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Family Bingo Game Traditional family Bingo game with a rotating drum. Comes complete with balls (1 to 90) and a selection of bingo cards ready to play. Not suitable for children under 36 months of age due to small parts…. |
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Confessions of a Lottery Ball: The Inside-out World of Aaron Freeman £6.99 … |
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Family Bingo Game Traditional family Bingo game with a rotating drum. Comes complete with balls (1 to 90) and a selection of bingo cards ready to play. Not suitable for children under 36 months of age due to small parts…. |
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Confessions of a Lottery Ball: The Inside-out World of Aaron Freeman £6.99 … |
