Solution - Episode 3 ; 2 teams of 7

Given that there are 4 red, 6 blue, and 3 green players to choose from What is the probability that you'll pick at least 2 blue players for your team, when teams are chosen random.

Treat player groups (colors) as non- distinguishable

to Solve the first thing you should do is find the sample space which in this case it is


now that you have the sample space you take the probability of the number of blue players is greater or equal to 2 and you will get the correct answer.