**UPDATE: This is not the same Mystic Ball site that was originally posted in 2006, which is a shame because that was a good one.**

http://www.mysticalball.___/

Did it read your mind? Did it guess the right symbol?

More importantly, can you explain how it was done?

## 5 comments:

Michael Johnson from the 7th and 9th period class.

It is all based on probability, it cannot actually read your mind but because the symbols repeat themselves therefore it has a certain probabilty in getting the number you get right.

You are correct that it can't read your mind, and that the symbols do repeat themselves.

However, it isn't a

probabilityproblem. Probability would tell you howlikelyit might be that you picked a symbol. The Mystic Ball gets it rightevery time.There is a mathematical explanation for it.

you guys are wrong the symbol is based on the number 9 so any number you pick and do the subracting thing it will equal the symbol from number 9. so if you pick 69 then subtract 15 because 6+9=15

69-15= the symbol from number 9

mr burke is just too lazy too explain it or he just doesnt know it.i am bored right now.did you hear my new song " my life "also with the game

Actually, my students and I discussed this problem in class about two years ago, but I left the problem up for fun.

Thanks for playing.

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