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21 May, 02:30

Assuming that no questions are left unanswered, in how many ways can a nine - question true-false quiz be answered?

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  1. 21 May, 02:32
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    If it's a true or false question, there's 2 possible answers. 9 questions, that means you will take 2 to the 9th power because these are independent events. 2^9 = 512 ways
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