We have 6 balls - 2 red, 2 blue, 2 green and 4 different cells .
We throw each ball randomly to one of the four cells.
If in cell#2 there is a red ball, what is the probability that there will be also a green ball in cell#2 ?
What is the probability that at least two balls with the same colour will be in the same cell?
Thanks a bunch for helping.