Probability maths question

[WhotheHellisEdgar]

Trying to help DS understand probability in his maths homework. Can anyone help explain how to solve the problem below? Just having a mental block 😢

Bag with 9 snooker balls, 3 red and 6 non-red.
What is the probability of pulling out 2 non- red on your first try?

Thanks!

@WhoppingBigBackside I know we are in Chat, but given the OP was asking for her child's homework I think it is helpful to show how to get the answer in the way that will probably be expected by school, if not now then in the future.

The two methods I've shown are the two ways they tend to be taught things. If you don't know them then of course you have to 'figure out' how to use them, but once known they make a lot of school level probability a lot easier.

Sometime it's easier to work out the probability of an event not happening and then subtract from 1

Tree diagrams can get very messy sometimes with lots of branches!

Indeed @cakeorwine

Thanks all, really appreciate your help! And I learned along the way 😁
He's happy now that he knows how to work it out.