. Upon arrival at a hospital’s emergency room, patients are categorized according to their conditions as critical, serious, or stable. In the past year, 10% were classified as critical, 30% serious, and the rest were stable. The records of 12 emergency room patients are randomly chosen to be examined for analysis.
a) What is the probability that all 12 records were of patients classified as critical?
Just help me set it up. i don't want the exact answer.

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p (.10)12= .0000000000001
would that be the answer?

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