Timeline for What is the intuition behind an Indicator Function?
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| Aug 7, 2021 at 7:02 | comment | added | Glen_b | "there's nothing that says a random variable needs to take on a numeric value" -- most definitions of random variable I have seen require exactly that. (They use a different term for things that are random but not numeric.) | |
| Apr 13, 2017 at 12:44 | history | edited | CommunityBot |
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| Oct 8, 2016 at 9:44 | history | edited | Tim | CC BY-SA 3.0 |
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| Oct 8, 2016 at 9:24 | history | edited | Tim | CC BY-SA 3.0 |
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| Oct 8, 2016 at 9:19 | history | edited | Tim | CC BY-SA 3.0 |
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| Oct 8, 2016 at 9:01 | history | edited | Tim | CC BY-SA 3.0 |
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| Oct 7, 2016 at 23:17 | comment | added | Cliff AB | @anonymous: there's nothing that says a random variable needs to take on a numeric value, or that "success" is equal to 1. The whole point of the indicator function is to formalize this. And imagine if you want to know the probability that the random variable X = 2. Using the notation you've suggested, we would have to say that 2 = 1, which is not good notation. | |
| Oct 7, 2016 at 22:52 | comment | added | user366312 | @CliffAB, isn't the Random Variable there to serve the same purpose? Like $H=1$ and $T=0$? | |
| Oct 7, 2016 at 21:57 | comment | added | Cliff AB | I think an important note is that (blue + blue + not-blue) / 3 is totally meaningless, but (1 + 1 + 0) / 3 = 2/3. | |
| Oct 7, 2016 at 21:50 | history | answered | Tim | CC BY-SA 3.0 |