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anonymous
 one year ago
A truefalse test has 12 questions. John guesses each answer. How many different ways are there for him to answer all the questions?
anonymous
 one year ago
A truefalse test has 12 questions. John guesses each answer. How many different ways are there for him to answer all the questions?

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kropot72
 one year ago
Best ResponseYou've already chosen the best response.0The number of ways to answer all the questions is\[\large 2^{12}=you\ can\ calculate\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0There are two ways that John could guess each answer: true or false. Therefore, in order to get all possible question answers, you take 2*2*2... or 2^12 to get 4,096 possible ways John could answer. Hope this helps! :D

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0how would i solve this in the form of a permutation?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You mean like \[nPr\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I honestly have no idea. I tried putting like 10 different numbers into the permutation calculator and it didn't come up with the answer above..

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ahah don't worry about it, I'll just ask my teacher when i see him next time :) thank you though!
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