Add Yahoo as a preferred source to see more of our stories on Google. Probability can explain why a coin flip has a 50/50 chance of landing heads versus tails, but it also can be used for more ...
"Yes or no: was there once life on Mars?" I can't say. "What about intelligent life?"' That seems most unlikely, but again, I can't really say. The simple yes-or-no framework has no place for shadings ...
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