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If you and I both generate a random real number between 0 and 1, what is the probability that we will both generate the same number?

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Posted · Report post

[

0.000000000000000000000000101

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Without putting too much thought into this one, this depends on how the random number is generated. If we are both using the same random number generator (table) with the same seed, then the probability is one. Other than that, there could be differences based on the distribution of the numbers (for example, a uniform distribution vs. the Beta distribution).

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Posted (edited) · Report post

there is no real number between the two, its a trick question

Edited by the new riddler
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Posted (edited) · Report post

there is no real number between the two, its a trick question

there is no REAL INTEGER between 0 and 1 but there are infinite number of real numbers. So, the probability is (1/infinite) =0....is it that easy???

Or, it might be one...if we are using the same generating table...

Edited by storm
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Posted · Report post

there is no REAL INTEGER between 0 and 1 but there are infinite number of real numbers. So, the probability is (1/infinite) =0....is it that easy???

It is that easy. What I was suggesting is that an event with probability zero needn't be impossible. Just infinitely improbable (hence the topic title). I know that in practice it might be hard or impossible to generate a truly random real number, but this is a thought experiment.

Is there a distinction between infinitely improbable events and impossible ones? I suspect that infinitely improbable events occur all the time, and that infinite improbability is a mundane aspect of the universe but still seems to keep itself distinct from impossibility. But I'm not sure. Maybe someone with a good knowledge of quantum physics could set me straight on that.

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Point of view / outside the box (I don't like confined spaces)

Fraction are made using real numbers eg 1,2, (1/2) ... is that possible

real if there are two of anything, say apples, to chose from... Is this "spin" can it work?

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Posted · Report post

Point of view / outside the box (I don't like confined spaces)

Fraction are made using real numbers eg 1,2, (1/2) ... is that possible

real if there are two of anything, say apples, to chose from... Is this "spin" can it work?

I don't understand the question I'm afraid. Sounds interesting though. Could you rephrase it a bit?

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