# Probability of winning in the lottery

• Nov 11th 2012, 07:21 AM
Serillan
Probability of winning in the lottery
In the lottery there are 5 numbers rolled from 35 numbers and for 3 right quessed numbers there is a third price.
What's the propability that we will win the third price if we buy one ticket with 5 numbers.
• Nov 11th 2012, 08:15 AM
Plato
Re: Probability of winning in the lottery
Quote:

Originally Posted by Serillan
In the lottery there are 5 numbers rolled from 35 numbers and for 3 right quested numbers there is a third prize. What's the probability that we will win the third price if we buy one ticket with 5 numbers.

There are $\displaystyle \binom{35}{5}$ possible tickets from a pool of thirty-five numbers.

There are $\displaystyle \binom{5}{3}\cdot\binom{30}{2}$ possible tickets containing exactly three of the five winning numbers..
• Nov 15th 2012, 07:27 PM
valeray12
Re: Probability of winning in the lottery
What should you do if you find a winning lottery ticket?

bar stool