S1 discrete random variables

In this question

for 0, doesn't that mean the probability that no dogs are chosen so the cats are chosen so 3/7?

In this question

for 0, doesn't that mean the probability that no dogs are chosen so the cats are chosen so 3/7?

Yes, it means no dogs are chosen.

But two animals are chosen, so it's not 3/7 (which would be correct if just one animal was chosen).

Original post by ghostwalker

Yes, it means no dogs are chosen.

But two animals are chosen, so it's not 3/7 (which would be correct if just one animal was chosen).

Aah so 3/7 * 2/6?

Aah so 3/7 * 2/6?

You got it!

Original post by ghostwalker

You got it!

Thanks!

LaTex

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