Timeline for 2 discrete distributions with equal mean and variance
Current License: CC BY-SA 3.0
12 events
| when toggle format | what | by | license | comment | |
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| Feb 10, 2015 at 15:46 | vote | accept | hanna | ||
| Feb 9, 2015 at 13:48 | comment | added | hanna | That is right. I mixed up 2 variables. Now I corrected it. It would be useful, if there is no solution, to know which parameters I could relax to get a solution, like adding an additional value to each distribution or change p(y) etc. Thank you very much!! | |
| Feb 9, 2015 at 13:46 | history | edited | hanna | CC BY-SA 3.0 |
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| Feb 7, 2015 at 17:33 | comment | added | soakley | You need to revise your problem statement again. Does random variable 2 take on values $x,$ $z,$ and $v?$ Or is it $y,$ $z,$ and $v?$ | |
| Feb 7, 2015 at 9:08 | history | edited | hanna | CC BY-SA 3.0 |
updated
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| Feb 7, 2015 at 1:27 | answer | added | soakley | timeline score: 1 | |
| Feb 6, 2015 at 11:47 | comment | added | hanna | Mean=μ=3/10 X=p_zZ+p_vV p_z+p_v=3/10 Variance= σ^2=1/2 [(X-μ)^2+(Y-μ)²]=1/3 [(X-μ)^2+(Z-μ)^2+(V-μ)²] V=0;Y=6000 | |
| Feb 6, 2015 at 11:37 | comment | added | hanna | no it's not for a class, it is for an experiment I want to design. unfortunately I am not familiar with mathematical software which should solve this easily. The equations are the following: | |
| Feb 6, 2015 at 9:55 | history | edited | Xi'an | CC BY-SA 3.0 |
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| Feb 6, 2015 at 9:52 | comment | added | Xi'an | could you write down both equations that all the unknowns have to statisfy for getting equal mean and equal variance? | |
| Feb 6, 2015 at 9:22 | comment | added | Glen_b | Is this for a class? | |
| Feb 6, 2015 at 9:14 | history | asked | hanna | CC BY-SA 3.0 |