how many possibilities?

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you have 8 question test answer true or false. How many possibilities are there are there? How many possibilities are there to get one wrong? two wrong? three wrong? 

If didn't study, how many possibilities are there to get five or six questions correct?

May 12th, 2015

2^8=256

256*1/8=36

256*2/8=64

256*3/8=96

192


May 12th, 2015

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May 12th, 2015
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May 12th, 2015
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