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bazzza100
16 Dec 09 10:30
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Date Joined: 22 Oct 07
| Topic/replies: 35 | Blogger: bazzza100's blog
how many ways are there to answer 8 t/f questions??

how many ways to answer if half of the answers are answered true?


how many if he answers each consecutive answer differently?
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Report Shezter December 16, 2009 10:43 AM GMT
Hi Bazza,

As far as I know there are 2^8=256 ways to answer 8 true/false questions.

If half are answered true I think there are 2^4=16 ways of answering the questions.

And if each consecutive answer is different there are just two ways, TFTFTFTF and FTFTFTFT.

Hope this helps and I hope my maths is right.

Shezter
Report bazzza100 December 16, 2009 10:44 AM GMT
cheers thanks a lot for that.
Report diggler December 16, 2009 11:09 AM GMT
70 ways if half are true (choose 4from8)
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