Timeline for Why is $x + x = 2x$, but $X + X \neq 2X$?
Current License: CC BY-SA 3.0
12 events
| when toggle format | what | by | license | comment | |
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| Sep 20, 2016 at 11:03 | comment | added | Elvis | At the time I answered (or I started to type my answer), the question about the difference between an algebraic variable and a random variable was appearing clearly (I did not devised it myself, but copy-pasted it!). Moreover I think the presentation of a random variable as measure on a random experiment helps to understand the distinction between $X_1 + X_2$ and $X+X$, so this is useful for the original question as well. Anyway I don’t think this is worth such a drama. | |
| Sep 19, 2016 at 15:19 | history | edited | Elvis | CC BY-SA 3.0 |
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| Sep 19, 2016 at 10:15 | history | edited | Elvis | CC BY-SA 3.0 |
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| Sep 19, 2016 at 9:56 | comment | added | Elvis | @Tim As anonymous tells above, at the time this question was appearing here. I completed my answer, I think that if anonymous make a small change to his/her question it won’t puzzle future readers. | |
| Sep 19, 2016 at 9:54 | history | edited | Elvis | CC BY-SA 3.0 |
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| Sep 19, 2016 at 9:47 | comment | added | Elvis | @anonymous You should just edit your question to add this broader question at the end. | |
| Sep 19, 2016 at 8:02 | comment | added | user366312 | @Tim, I apologize for that. I raised the issue to the answerers, but they didn't respond. So, I deleted the comments and posted another question. But, now I see this answer and I accepted it. | |
| Sep 19, 2016 at 8:00 | comment | added | Tim | @anonymous but as it stands now, the answer is totally unrelated to your question while the two other answers give a direct answer to it. | |
| Sep 19, 2016 at 7:54 | comment | added | user366312 | @Tim, Yes that was. But, this question was posed here first. Then, I changed it again. | |
| Sep 19, 2016 at 7:51 | vote | accept | user366312 | ||
| Sep 19, 2016 at 7:26 | comment | added | Tim | Wasn't it an answer to stats.stackexchange.com/questions/235688/… rather then this question..? | |
| Sep 19, 2016 at 7:23 | history | answered | Elvis | CC BY-SA 3.0 |