Mathematics, 17.11.2020 22:10 shey89

On December 1, the U. S. Citizenship and Immigration Services department will launch a new citizenship test for greencard holders who qualify to become U. S. citizens. This is a multiple choice test consisting of 20 questions. Assume that the first five questions relate to the principles of American government, and that each of these questions has four options of which only one option corresponds to a correct answer. If someone guesses at random on each of the American government questions, what is the probability that they will get exactly 2 answers correct?

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On December 1, the U. S. Citizenship and Immigration Services department will launch a new citizensh...

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Mathematics, 18.11.2020 14:00

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