Wtf is my teacher wrong?
If you have an election for 3 differente charges for student council in a class of 30 people, with 20 femoids and 10 males, why is the chance of having an all female board is 8,87%
Shouldnt it be 2,955%?

? = 30C3 =4060
Woman= 10C3 = 120
120/4060 *100% = 2,955%
and 8,87% is 2,955*3
Where the fuck did the 3 came from!?