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.
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..