how to create Chi squared distribution using mean and variance?

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Khoder Makkawi
Khoder Makkawi el 16 de Dic. de 2019
Editada: Vladimir Sovkov el 16 de Dic. de 2019
Hello,
I have the mean and the variance for a Chi squared distribution.
I want to create this Chi squared distribution using the mean and the variance that I have, can I ?
Thank you.

Respuestas (1)

Vladimir Sovkov
Vladimir Sovkov el 16 de Dic. de 2019
see https://www.mathworks.com/help/stats/chi-square-distribution-1.html
  6 comentarios
Khoder Makkawi
Khoder Makkawi el 16 de Dic. de 2019
What I have is the mean and the variance of the distributed variable x.
What I want is to plot the Chi squared distribution that represents these data.
But I don't know how to do that using the mean and the variance.
Vladimir Sovkov
Vladimir Sovkov el 16 de Dic. de 2019
Editada: Vladimir Sovkov el 16 de Dic. de 2019
If you want to approximate your x with the variance of 0.01 via chi^2, then it is quite impossible--the variance of chi^2 must be integer. If you want to construct the new chi^2 variable based on your x implying it is normally distributed - see my earlier comment.

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