ItsFree

i too need help

THank you so much Melody. 

Thanks so much!

@MaxWong and @Anthrax

The probablility that you draw \(2\) Black balls from the box is just \(\frac13\cdot\frac58=\frac{5}{24}\)

There are \(\binom{8}{4}\) ways to choose 4 different members.

Yes it should be \(-1+12i\).