What is the answer to this probability question: If I want to find the P (IBD and RA), am I finding the percentage by finding both diseases over the general population or the number of people with IBD? It is for an essay I am doing in Maths?
If a box contains 11 hats, out of which 6 are red hats and 5 are green hats. If two hats are to be selected at random without replacement, what is the probability that at least one green hat will be selected?
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