You're having a serious reading comprehension problem. Let's try one more time because I literally have nothing better to do.
I'm going to set up an experiment. I've got a bag full of blocks - ten in all. Nine are painted red, and one is painted blue. (Imagine the usual controls are in place to make it so people can't tell which block is which by feeling them or whatever, the bag is opaque, etc.)
We pull a block out at random. What are the odds that the block is the blue one?
I'll wait here.
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Okay by now hopefully you've answered. I'm going to be generous and assume you even got the correct answer. Now I'm going to give you another scenario.
This scenario has nothing to do with the other one. This is a brand new scenario.
I'm going to set up an experiment. I've got two bags full of blocks - ten in each bag. Nine in each bag are painted red, and one is painted blue. (Imagine the usual controls are in place to make it so people can't tell which block is which by feeling them or whatever, the bags are opaque, etc.)
We pull a block out of each bag at random. What are the odds that both of the blocks are the blue ones?
Again, take your time.
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Got it? Good.
Okay, now I have a question. Which was the more likely - getting the blue block in the first experiment, or getting both blue blocks in the second experiment?