Answer:
Step-by-step explanation:
There are 9C3 total ways of picking 3 people from 9 where order does not matter.
To pick 3 boys from 6, you must do 6C3
When you do both of these you divide the smaller by the larger.
9C3 = 84
6C3 = 20
So the probability that you want is
20/84 = 0.238
If you are uncertain where the 84 comes from, it is calculated like this
9*8*7*6! The 6!s cancel out and you are left with
=======
6! * (9 -6)!
9C3 = 9*8*7/3!
9C3 = 3 * 4 * 7 = 84
6C3 is done exactly the same way.
