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Possible Duplicate:
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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    @dato: Please see [this meta answer](http://meta.math.stackexchange.com/a/2675).2012-05-04

1 Answers 1

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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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    i will try to ask it teachers,thanks guys2012-05-04