Timeline for Error Bars in a Monte Carlo Coin Experiment
Current License: CC BY-SA 3.0
8 events
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| Sep 29, 2013 at 10:35 | comment | added | Bronzeclocksofbenin | @Glen_b If I take my probability in this case to be 78/1000, I find the square root of the variance to be 8.48. I checked this for all of the Q's in my example, and it's usually about one or two integer values off from the stated error bar. | |
| Sep 29, 2013 at 10:24 | comment | added | Glen_b | How do they relate to the square root of the binomial variance $np(1-p)$? | |
| Sep 29, 2013 at 10:22 | comment | added | Bronzeclocksofbenin | @Glen_b for the value N=0, we have Q=78. The error bar for that example was 9. I noticed that the error bar for each Q was about the square root of Q rounded to the nearest integer, but that doesn't make any sense.The ratio of error bar size to st. dev. was about 6 for the above Q. | |
| Sep 29, 2013 at 6:18 | comment | added | Glen_b | ... on the error bars you had on that question, what is the ratio of the error bar size to the standard deviation? | |
| Sep 29, 2013 at 3:49 | comment | added | Glen_b | It depends on what the error bars are to represent; different things are possible. For example, it's quite common in this situation to use standard error bars to represent the standard deviation. So what, specifically, are your error bars intended to indicate? (In the previous incarnation of your question, now deleted -- I can't find it - it might have been possible to back the definition being used out. If you can point me to it, that might help.) | |
| Sep 28, 2013 at 22:18 | review | First posts | |||
| Sep 28, 2013 at 22:48 | |||||
| Sep 28, 2013 at 22:02 | history | edited | whuber♦ |
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| Sep 28, 2013 at 21:58 | history | asked | Bronzeclocksofbenin | CC BY-SA 3.0 |