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percentage calculation

After reinterpret this question percentage calculation I have idea that, by observing person not only name I could not, but also marital status I can't deduce, so answer would be $2/8$*100=$25$%, sorry for repeating question, (tomorrow I have midterm so wanted to know actual answer on this question)

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marked as duplicate by Matt N., Martin Sleziak, t.b., Brian M. Scott, Asaf Karagila May 5 '12 at 7:58

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Please make this question self-contained. –  Sasha May 4 '12 at 14:37
    
why?is not possible to answer or? –  dato datuashvili May 4 '12 at 14:40
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@dato: Please see this meta answer. –  joriki May 4 '12 at 14:41

1 Answer 1

up vote 1 down vote accepted

Your variables are: Name, Age, Gender, Height, Weight, Eye color, Hair color and Marital status, and you are asked which of these you cannot deduce by observation.

Can you deduce a person's weight by observation alone? Can you deduce a person's age?

Perhaps it depends on your powers of observation. Good luck with your midterm.

http://www.youtube.com/watch?v=yE4pj2w2KCQ

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thanks very much@Daniel Pietrobon –  dato datuashvili May 4 '12 at 14:45
    
i will try to ask it teachers,thanks guys –  dato datuashvili May 4 '12 at 14:52

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