because it does.
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No there is a fifty fifty chance of getting heads or tails
The probability of a fair coin landing on heads or tails is even, i.e. 50/50.
2 heads and 2 tails
The image is of flipping a coin and not being able to tell if it comes up "heads" or "tails." You say this when you can't figure something out at all, as in "I just can't make heads or tails out of this report; can you rewrite it so that it makes more sense?"It means that you cannot understand something. Some thing that is really tough to understand. Some thing strange.
well it depends on what you are tossing, if its a coin then no. it can be heads too. it would have to be a great coincidence for it to be all tails, but thats why the word probability comes in meaning that there is more than one outcome